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Ask QuestionPosted by R.G.R ?☺️ 5 years, 7 months ago
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Posted by Akshit Mathur 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
The main component of natural gas is methane CH4 some other gases like butane ethane are also present.
Posted by Abhi Sahu 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
The energy given to each coulomb of charge is equal to the amount of work which is done in moving it.
Now we know that,
Potential difference = Work Done/Charge
Work done = Potential difference — charge
Where, Charge = 1 C and Potential difference = 10 V
W = V × Q
W = 6 × 1
Work done or energy = 6 joules.
Posted by Anushka ???? 5 years, 7 months ago
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Posted by ?Ritesh Gupta☺️ 5 years, 7 months ago
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Stranger?♋ Things 5 years, 7 months ago
Posted by Divya Banjara 5 years, 7 months ago
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Posted by Parth Shah 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Some of the variations may be helpful to the organisms in the prevailing natural conditions. Organisms with such positive variations would survive. Over the period variations keep appearing in a species. The favorable variations are chosen by natural selection and promotes survival of the species.
Depending on the nature of variations different individuals would have different kinds of advantage e.g., Bacteria variants which can tolerate heat have better survival chances in heat wave in comparison to non-variant bacteria having no capacity to tolerate heat wave.
However not all variations are useful or beneficial.
Posted by S. Murugan Bhava Dharani 5 years, 7 months ago
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Posted by ?King K. Tyagi ? 5 years, 7 months ago
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Posted by Nitish Singh 5 years, 7 months ago
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Arjun Kashyap 5 years, 7 months ago
Posted by Nitish Singh 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Acids that give high concentration of H+ ions on ionisation in aqueous solution are said to be strong acids and acids which give less H+ ions on ionisation in aqueous solution are said to be weak acids.
Examples of Strong acids : Hydrochloric acid and nitric acid
Examples of Weak acids : Acetic acid and formic acid
Nitish Singh 5 years, 7 months ago
Posted by Arjun Kashyap 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
- When the current begins to flow, current flows through brush X, then A to B, B to C, C to D and then to brush Y and into the battery.
- Now applying Fleming's Left Hand Rule to wire AB, Current is along AB, Magnetic Field is as shown (North-> South), the motion of the wire is downwards.
- Now applying Fleming's Left Hand Rule to wire CD, Current is along CD, Magnetic Field is as shown (North-> South), the motion of the wire is upwards.
- The rectangular coil begins to move in the anti-clockwise direction
- Note that during anti-clockwise motion, the split rings and axle also move, whereas the brushes don't move.
- After half a rotation, Wire CD and Split ring Q moves to the left. Wire AB and Split ring P moves to right. Brushes X and Y donot move.
- Now applying Fleming's Left Hand Rule to wire CD, Current is along DC. (Battery -> Split ring Q -> DC , Magnetic Field is as shown (North-> South), the motion of the wire is downwards.
- Now applying Fleming's Left Hand Rule to wire AB, Current is along BA. (Battery -> Split ring Q -> DC --> CB -> BA --> Split ring P) , Magnetic Field is as shown (North-> South), the motion of the wire is upwards.
- So, again the coil rotates in the anti-clockwise direction.
- The reversal of current in the coil results in the continous rotation of the coil. The reversal of current is achieved by the commutator rings
Posted by Harpreet Kaur 5 years, 7 months ago
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Shravani ? 5 years, 7 months ago
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Posted by Stranger?♋ Things 5 years, 7 months ago
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Posted by Stranger?♋ Things 5 years, 7 months ago
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Posted by Stranger?♋ Things 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
|
Motor |
Generator |
|
An electric motor is a machine that converts electrical energy to mechanical energy. |
An electric generator is a machine that converts mechanical energy to electrical energy.` |
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Electric motor follows Fleming’s left-hand rule. |
Electric generator follows Fleming’s right-hand rule. |
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Motors works on the principle that a current carrying conductor experiences a force when placed in a magnetic field. |
Generators work on the principle of electromagnetic induction. |
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The shaft of an electric motor is driven by a magnetic force which is developed between the armature and field. |
The shaft of an electric generator is connected to the rotor which is driven by a mechanical force. |
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In a motor, current is supplied to the armature winding. |
In a generator, current is produced in the armature winding. |
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Ceiling fans, cars, etc. are all examples of motor. |
In power stations, generator is used to generate electricity. |
Posted by Stranger?♋ Things 5 years, 7 months ago
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Minu Shiwani Chandel 5 years, 7 months ago
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Stranger?♋ Things 5 years, 7 months ago
Posted by Dbsb Hsjd 5 years, 7 months ago
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Meghna Thapar 5 years, 6 months ago
Sea energy can be harnessed by tidal energy and wave energy.
Tidal energy: During the high tide, when the level of water in the sea is high, sea-water flows into the reservoir of the barrage and turns the turbines. The turbines then turn the generation to produce the electricity.
Wave energy: The speed of sea waves are very high, the high speed waves are used to run the turbine to generate the electricity.
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Stranger?♋ Things 5 years, 7 months ago
Posted by Sunitha Sunitha 5 years, 7 months ago
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Minu Shiwani Chandel 5 years, 7 months ago
Ankit Singh Thakur 5 years, 7 months ago
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