| 1 |
The 1st practical electric battery is known as: |
Voltaic
Pile
Voltaic pile
Voltaic cell
|
| 2 |
Who developed the 1st practical electric battery: |
Alessandro volta
Faraday
Newton
None of these
|
| 3 |
Volt is named after the Italian physicist: |
Faraday
Alessandro volta
Newton
Coulomb
|
| 4 |
The electrostatic force acting on two charges each of 1 C separated by 1m is about . |
9 x 10<sup>9</sup> N
9 x 10<sup>-9</sup>N
9 x 10<sup>8</sup>N
9 x 10<sup>-8</sup>N
|
| 5 |
If we double the distance between two charges, then force becomes |
4-times
1/4th
Double
Half
|
| 6 |
One coulomb is equal to charge of ________ electrons. |
6.25 x 10<sup>-19</sup>
6.25 x 10<sup>19</sup>
6.25 x 10<sup>18</sup>
6.25 x 10<sup>-18</sup>
|
| 7 |
The SI the unit of charge is: |
Jpi;e
Volt
Coulomb
Watt
|
| 8 |
One micro coulomb charge is equal to: |
10<sup>-3</sup> C
10<sup>3</sup>C
10<sup>6</sup>C
10<sup>-6</sup>C
|
| 9 |
Capacitance is defined as: |
VC
Q/V
QV
V/Q
|
| 10 |
Electric field lines: |
always cross each other
never cross each other
cross each other inthe region of strong field
cross each other in the region of weak field
|
| 11 |
Two charged spheres are separated by 2 mm. Which of the following would produced the greatest attractive force? |
+1 q and +4q
-1 q and -4q
+2 q and +2q
+2 q and -2q
|
| 12 |
Five joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is: |
0.5 V
2 V
5 V
10 V
|
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