If by mistake voltmeter is connected in series and ammeter in parallel then
If by mistake voltmeter is connected in series and ammeter in parallel then Options (a) both are damaged (b) ammeter…
7 years ago
Current Electricity
Two resistances 3Ω and 6Ω are connected in parallel
Two resistances 3Ω and 6Ω are connected in parallel and a 4Ω resistance is connected in series. The current through…
7 years ago
An α-particle and a proton are accelerated through same potential difference
An α-particle and a proton are accelerated through same potential difference from rest. Find the ratio of their final velocity…
7 years ago
When a Daniel cell is connected in the secondary circuit of a potentiometer,
When a Daniel cell is connected in the secondary circuit of a potentiometer, the balancing length is found to be…
7 years ago
The drift velocity of the electrons in a copper wire of length 2 m under
The drift velocity of the electrons in a copper wire of length 2 m under the application of a potential…
7 years ago
The identical cells connected in series are needed to heat a wire of length one meter
The identical cells connected in series are needed to heat a wire of length one meter and radius 'r' by…
7 years ago
Charge passing through a conductor of cross-section area A=0.3 m² is given
Charge passing through a conductor of cross-section area A=0.3 m² is given by q=3t²+5t+2 in coulomb, where t is in…
7 years ago
A wire of a certain material is stretched slowly by ten percent. Its new resistance
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively…
7 years ago
A wire of resistance 4 ohm is stretched to twice its original length.
A wire of resistance 4 ohm is stretched to twice its original length. The resistance of stretched wire would be…
7 years ago
A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter
A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter of range Options (a) 1A (b)…
7 years ago