- AUndergoes acceleration all the time.
- BSpeeds up between the dees because of the magnetic field.
- CSpeeds up in a dees.
- DSlows down within a dee and speeds up between dees.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
In a typical Wheatstone network, the resistances in cyclic order are A = 10 W, B = 5 W, C = 4 W and D = 4 W for the bridge to be balanced

|
(a) 10 W should be connected in parallel with A |
|
(b) 10 W should be connected in series with A |
|
(c) 5 W should be connected in series with B |
|
(d) 5 W should be connected in parallel with B |
A solenoid has an inductance of 60 henrys and a resistance of 30 ohms. If it is connected to a 100 volt battery, how long will it take for the current to reach
of its final value
|
(a) 1 second |
(b) 2 seconds |
(c) e seconds |
(d) 2e seconds |

Magnetic flux ∅ (in weber) linked with a closed circuit of resistance 10 ohm varies with time t (in seconds) as ∅ =
The induced electromotive force in the circuit at t = 0.2 sec. is
|
(a) 0.4 volts |
(b) – 0.4 volts |
(c) – 2.0 volts |
(d) 2.0 volts |
A person wears glasses of power – 2.0 D. The defect of the eye and the far point of the person without the glasses will be
|
(a) Nearsighted, 50 cm |
(b) Farsighted, 50 cm |
(c) Nearsighted, 250 cm |
(d) Astigmatism, 50 cm |
Assertion : The coil is bound over the metallic frame in moving coil galvanometer.
Reason : The metallic frame help in making steady deflection without any oscillation.
|
(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. |

Two identical parallel plate capacitors are connected in series to a battery of 100 V. A dielectric slab of dielectric constant 4.0 is inserted between the plates of second capacitor. The potential difference across the capacitors will now be respectively
|
(a) 50 V, 50 V |
(b) 80 V, 20 V |
(c) 20 V, 80 V |
(d) 75 V, 25 V |