Question
Electron volt is a unit of
|
(a) Potential |
(b) Charge |
(c) Power |
(d) Energy |
✓
Answer
(d) Energy
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
An inductor of 2 henry and a resistance of 10 ohms are connected in series with a battery of 5 volts. The initial rate of change of current is
|
(a) 0.5 amp/sec |
(b) 2.0 amp/sec |
(c) 2.5 amp/sec |
(d) 0.25 amp/sec |
A diamagnetic material in a magnetic field moves:
If six identical cells each having an e.m.f. of 6V are connected in parallel, the e.m.f. of the combination is
|
(a) 1 V |
(b) 36 V |
(c) |
(d) 6 V |
A capacitor of capacity 
is charged to the potential of 
. On disconnecting with the battery, it is connected with a capacitor of capacity 
as shown in the adjoining figure. The ratio of energies before and after the connection of switch S will be
|
(a) ( |
(b) |
(c) |
(d) |
A long solenoid carrying a current produces a magnetic field B along its axis. If the current is doubled and the number of turns per cm is halved, the new value of the magnetic field is
|
(a) B |
(b) 2 B |
(c) 4 B |
(d) B/2 |
How many capacitors having at least 2 µF capacitance
will give 5 µF capacitance?
The excess pressure inside a soap bubble is twice the excess pressure inside a second soap bubble. The volume of the first bubble is n times the volume of the second where n is:
- 4
- 2
- 1
- 0.125.
Which of the following can be deflected by applying magnetic field ?
Which of the following particles will have minimum frequency of revolution when projected with the same velocity perpendicular to a magnetic field?
An oscillator is producing FM waves of frequency 2 kHz with a variation of 10 kHz. What is the modulating index
|
(a) 0.20 |
(b) 5.0 |
(c) 0.67 |
(d) 1.5 |