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Ask QuestionPosted by Gulshan Kumar 1 week, 3 days ago

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Gaurav Seth 1 week, 3 days ago

**Dimensions** of a physical quantity are powers (exponents) to which base quantities are raised to represent that quantity. They are **represented by square brackets** around the quantity.

- Dimensions of the 7 base quantities are – Length [L], Mass [M], time [T], electric current [A], thermodynamic temperature [K], luminous intensity [cd] and amount of substance [mol].

Force = Mass x Acceleration = [M][L]/[T]^{2} = [MLT^{-2}]

Posted by Arru Sinha 1 week, 3 days ago

- 0 answers

Posted by Deeksha Dev.J 1 month, 2 weeks ago

- 1 answers

Posted by David ......... 1 month, 3 weeks ago

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Posted by Yogitha Cr 3 months, 2 weeks ago

- 5 answers

Posted by Sai Gujar 4 months ago

- 3 answers

Raghavendra Illale 2 months ago

The current flowing through the conducter is directly proportional to the potential difference across the ends of the conductor provided temperature and others physical quantities remain same..V=IR

Yogita Ingle 4 months ago

**Ohm’s Law**

- Ohm’s law is named after the scientist Ohm who gave this law.
- According to the Ohm’s law current flowing through a conductor is directly ∝ to the potential difference applied between the ends of the conductor.
- This means if the potential difference applied at the ends increases then the current flowing through the conductor also increases and vice-versa.
- Mathematically
- Current flowing through the conductor I ∝ V where V is the potential difference applied at the ends of the conductor.
- Or I=(constant) V where constant = 1/R where R =resistance of the conductor
- => I=(1/R)V
- =>
**V=IR**

Posted by Pappu Yadav 4 months, 2 weeks ago

- 1 answers

Posted by Pragnya Saswati 6 months ago

- 5 answers

Posted by Uday Jha 6 months, 2 weeks ago

- 5 answers

Manav Malhotra 6 months ago

force for +q is +F
force for -q is -F
Net force = +F + ( - F ) = 0 zero
So D is the answer

Posted by Shraddha Jha 7 months, 3 weeks ago

- 2 answers

Prikshit Bishnoi 6 months, 1 week ago

p end connected with positive terminal and n end connected with negative terminal .
Therefore applied voltage is opposite to the junction barrier potential

Rishita Punia 7 months, 1 week ago

In this positive terminal of battery is connected to p type and negative part of battery is connected to n type of semiconductor

Posted by Zikra Raza 8 months ago

- 0 answers

Posted by Seema Devi 8 months, 2 weeks ago

- 1 answers

Yogita Ingle 8 months, 1 week ago

Relative error is defined as the ratio of the absolute error of the measurement to the actual measurement. Using this method we can determine the magnitude of the absolute error in terms of the actual size of the measurement. If the true measurement of the object is not known, then the relative error can be found using the measured value. Relative error gives an indication of how good a measurement is relative to the size of the object being measured.

If x is the actual value of a quantity, x_{0} is the measured value of the quantity and Δx is the absolute error, then the relative error can be measured using the below formula.

Relative error = (x_{0}-x)/x = (Δx)/x

An important note that relative errors are dimensionless. When writing relative errors it is usual to multiply the fractional error by 100 and express it as a percentage.

Posted by Pratibha Yadav 9 months, 2 weeks ago

- 1 answers

D Bulliyya 8 months, 2 weeks ago

Y=a sinkx coswt a is the amplitude k is the propagation constant x is the displacement w is the angular frequency t is the time

Posted by Sakharam Wayal 10 months ago

- 5 answers

Jayesh Sharma 8 months, 1 week ago

Joule✅
As Work = Force × Displacement
W = Nm/s^2 × m
W = Nm^2/s^2
W = Joule

Posted by Rumi Roy 10 months, 3 weeks ago

- 0 answers

Posted by Ragavan Rengamannar 11 months ago

- 1 answers

Posted by Anita Kumari 11 months, 1 week ago

- 1 answers

Kurai Dodiya Gohil 5 months, 3 weeks ago

in youngs experiment
they given us .
d=0.0002m
π=0.0000006m
D=0.8m
n=5. then we find x=?
we have a formula . nπ=(xd)/D
AND GET YOUR ANS

Posted by Rahul Kumar 11 months, 2 weeks ago

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Posted by Shivam Rawat 1 year ago

- 2 answers

Posted by Zar Killer 1 year ago

- 2 answers

Gumansingh Singh 7 months, 3 weeks ago

It is a type of Instument in which current pass slowly

Khushi Mishra 11 months, 3 weeks ago

That is a type of conductor which oppose the flow of current in it

Posted by Prateek Gupta 1 year ago

- 4 answers

Posted by Sejal Kanse 1 year, 1 month ago

- 0 answers

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