Welcome to your CURRENT ELECTRICITY-1
1.
If cross-section area of wire is doubled, drift velocity…
3.
Heating effect in conductor decreases when…
4.
Power dissipation is maximum when…
5.
If current doubles, drift velocity…
6.
Conductivity increases when…
7.
For two identical bulbs in series…
8.
Internal resistance of an ideal battery is…
9.
Cross-sectional area of wire decreases. Resistance…
10.
In electrolysis, current is carried by…
11.
Unit of resistivity is…
12.
A wire stretched to double its length has resistance…
13.
Hot filament bulbs have high resistance because…
14.
Which of the following obeys Ohm’s law?
15.
Which quantity is same in series circuit?
16.
Resistance of a wire becomes four times if…
17.
Current density J increases when…
18.
Heating effect depends on…
19.
Current through a conductor depends on…
20.
A fuse wire should have…
21.
Drift velocity increases when…
22.
Superconductors have resistivity…
23.
Current through a resistor is halved when…
24.
If 10 A current flows for 2 s, charge passed is…
25.
Ammeter has very low resistance to…
26.
Terminal voltage increases when…
28.
Moving charge experiences collision with…
29.
When a conductor is heated, drift velocity…
30.
If all resistors in a circuit are doubled, current becomes…
31.
When temperature increases, resistance of metals…
32.
Kirchhoff’s loop rule is based on…
33.
In parallel combination, voltage across each resistor is…
34.
Power of a resistor increases when…
35.
Energy delivered by a battery is maximum when…
36.
Electric current is defined as…
37.
The best conductor is one having…
38.
In series combination, equivalent resistance is…
39.
Resistance of alloy manganin…
40.
In ohmic conductor V–I graph is…
41.
Mobility of electrons increases when…
42.
Which quantity is same in parallel circuit?
43.
Resistivity depends on…
44.
Kirchhoff’s junction rule is based on…
45.
If R = 0 in a circuit, current becomes…
