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If we connect shunt to galvanometer in series it converted into ammeter, it starts working like a ammeter that is why shunt in ammeter connected in series and parallel to galvanometer.

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Board ke paper ki prepration konsi book se kre

Posted by Manpreet Suneja 7 years, 3 months ago

CBSE > Class 12 > Physics

4 answers

Manpreet Suneja 7 years ago

Biology board paper ki preparation konsi book se kre

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Ayushi Kumari 7 years, 3 months ago

Ncert is best after that if you want to pratice Xamidea is a good choice

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Ravi Yadav 7 years, 3 months ago

NCERT and for questions Xamidea Refrence book pradeep's

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Samir Mughal??????️? 7 years, 3 months ago

Arihant

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How to galvanometer is converted into voltmeter and ammeter?

Posted by Rao Faheem 7 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Ayushi Kumari 7 years, 3 months ago

By connecting high resistance into voltmeter in series and low resistance into ammeter in series both get converted into galvanometer

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Bhavani D S Bhavani D S 7 years, 3 months ago

The galvameter is converted into voltmeter by connecting a high resistance in series with it

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Mohit Sharma 7 years, 3 months ago

G?A by connecting shunt resistance in parallel to G G?V by connecting shunt resistance in series to G

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The electric potential due to a small electric dipole at a large distance r from the center of the dipole is proportional to :-

Posted by Abhi Singh 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Mohit Sharma 7 years, 3 months ago

P =dipole movement

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Work done formula

Posted by Rohit Dhapola 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Anjana Sherawat 7 years, 3 months ago

F×S

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explain with the help of digram the armature a.c generatos produces current which changes its direction even what direction of rotation of amature coil remain same . write the expression for the emf generated to the coil in terms of speed of rotation

Posted by Pratham Kaushik 7 years, 3 months ago

CBSE > Class 12 > Physics

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Current is set up in a copper pipe. Will the magnetic field will exist inside the copper pipe?justify your answer.

Posted by Govind Bansal 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Govind Bansal 7 years, 3 months ago

The answer is no.

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Harshita Paliwal 7 years, 3 months ago

Yes, bcoz magnetic field generated due to flow of current

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What is the shorpnes of resonance?

Posted by Dhananjay Sahani 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Bharvi Dani 7 years, 3 months ago

The highest peak of the graph is sharpness of resonance

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Describe the principle construction theory and working of a transformer

Posted by Deepu Chauhan 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Tushar Mittal 7 years, 3 months ago

it is based on the principle of mutual induction

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Focal length of a concave mirror is 15cm in air. What would be focal length of a concave mirror under water?

Posted by Fayaz Ahmad 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Anjana Sherawat 7 years, 3 months ago

Because focal length of lens changes with change in medium not of mirror

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Anjana Sherawat 7 years, 3 months ago

No change

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A series LCR circuli with L=0.12H C=0.4 pF and R=23 ohm is connected to a 230volt variable frequency supply.find the source frequency for which value of current amplutude is maximum.Also calculate maximum value of current.

Posted by Aman Bharadwaj 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Explain on what factors does the self inductance of a solenoid depend?

Posted by Nagrare Shreya 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Deepu Chauhan 7 years, 3 months ago

The self inductance of a solenoid depends on its geometry and magnetic permeability of the core material 1. Number of turns 2. Area of cross section 3. Permeability of the core material Please tell me my answered is right or wrong

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What is mutual inductance of two nearby coils ? Find an expression for mutual induction of two co-axial solenoids?

Posted by Nagrare Shreya 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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What is mutual inductance of two nearby coils? Find an equation for mutual induction of two co- axial aolenoid ?

Posted by Nagrare Shreya 7 years, 3 months ago

CBSE > Class 12 > Physics

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To help keep his barn warm on cold days, a farmer stores 802 kg of solar-heated water (Lf = 3.35E+5 J/kg) in barrels. For how many hours would a 2.19 kW electric space heater have to operate to provide the same amount of heat as the water does, when it cools from 13.7 to 00C and completely freezes?

Posted by Dipank Deka 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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What is a ohm's law graph

Posted by Ayush Raj Singh 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Sardaar Ji 7 years, 3 months ago

Ohm's Law states that the current through a metallic conductor is proportional to the potential difference across it if the temperature remains constant. So, if you plot a graph of current against voltage you will get: Note: The gradient of a current against voltage graph is equal to 1/resistance of the component.

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What is relaxation time

Posted by Khule Sher 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Anjana Sherawat 7 years, 3 months ago

Time between two successive collisions between electrons in a conductor

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Coupon Code

Posted by Ronak Saini 5 years ago

CBSE > Class 12 > Physics

4 answers

Abhinav Jha 5 years, 1 month ago

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Krishabh Aatmaj 5 years, 5 months ago

what is the question

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Kunal Bisht 6 years, 9 months ago

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Tirth Patel 6 years, 11 months ago

you know

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Unit of Susceptibility

Posted by Jai Aggarwal 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Shivani Gupta 7 years, 3 months ago

Unitless

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Why is the gravitational potential energy always negative?

Posted by Aman Raj 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 7 years, 3 months ago

Gravitational potential energy is negative at the surface of Earth, because work is done by the gravitational field in bringing a mass from infinity.
In other words, work has to be done on a body, if it is taken away from the gravitational field of the earth. Thus, potential energy is negative.
For example, when a rocket is sent to space, work is done using fuels.

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Derive an torque on current carrying coil in a magnetic field

Posted by Suparna Bhattacharjee 7 years, 3 months ago

CBSE > Class 12 > Physics