A device which converts electrical energy into mechanical energy is
|
(a) Dynamo |
(b) generator |
(c) Electric motor |
(d) Induction coil |
A device which converts electrical energy into mechanical energy is
|
(a) Dynamo |
(b) generator |
(c) Electric motor |
(d) Induction coil |
(c) Electric motor
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

The chemical equivalent of copper and zinc are 32 and 108 respectively. When copper and silver voltameter are connected in series and electric current is passed through for sometimes, 1.6 g of copper is deposited. Then, the mass of silver deposited will be
|
(a) 3.5 g |
(b) 2.8 g |
(c) 5.4 g |
(d) None of these |
Assertion : In the given circuit if lamp B or C fuses then light emitted by lamp A decreases.

Reason : Voltage on A decreases.
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If the assertion and reason both are false. |