1.
An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be:
A. 
B. 
C. 
D. 
2.
In the given figure, the resistors:
A. 
6 Ω, 3 Ω and 9 Ω are in series
B. 
9 Ω and 6 Ω are in parallel and the combination is in series with 3 ohm
C. 
3 Ω, 6 Ω and 9 Ω are in parallel
D. 
3 Ω and 6 Ω are in parallel and the combination is in series with 9 Ω
3.
Electric power is inversely proportional to:
A. 
B. 
C. 
D. 
4.
Three resistors of 1 Ω, 2 ohms,s, and 3 Ω are connected in parallel. The combined resistance of the three.
A. 
B. 
C. 
D. 
5.
Point to be kept in mind for verification of Ohm’s Law is:
A. 
Ammeter and voltmeter should be connected in series
B. 
Ammeter should be connected in series and voltmeter in parallel
C. 
Ammeter should be connected in parallel and voltmeter in series
D. 
Ammeter and voltmeter should be connected in parallel
6.
There is the wire of length I and cross-section A. Which of the given have the least resistance.
A. 
Length doubled, Area halved
B. 
Length tripled, Area doubled
C. 
Length halved, Area doubled
D. 
7.
A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:
A. 
B. 
C. 
D. 
8.
The resistance of a conductor depends directly on its ……… and ...... , inversely on its ………
9.
According to ohm's Law, the ............ across the ends of a resistor is directly proportional to the ……… flowing through it, provided its ...........
remains constant.
10.
If the amount of electric charge passing through a conductor in 10 minutes is 300 C, the current flowing is:
A. 
B. 
C. 
D. 
11.
An electric fuse works on the:
A. 
Chemical effect of current
B. 
Magnetic effect of current
C. 
Lightning effect of current
D. 
Heating effect of current
12.
From the graph:
A. 
B. 
C. 
D. 
13.
Calculate Resistance.
A. 
B. 
C. 
D. 
14.
If in the given arrangement, the three resistors are to be replaced by a single resistor. What will be the value of this resistor?
A. 
B. 
C. 
D. 
15.
In An Electrical Circuit Three Incandescent Bulbs A, B And C Of Rating 40 W, 60 W And 100 W Respectively Are Connected In Parallel To An Electric Source. Which Of The Following Is Likely To Happen Regarding Their Brightness?
A. 
All the three bulbs glow with same brightness
B. 
Bulb A glows with more brightness than bulb B and C
C. 
Bulb C glows with more brightness than A and B
D. 
Bulb B glows with more brightness than A and B
16.
When a current 'I' flows through a resistance 'R' for time 't' the electrical energy spent is given by:
A. 
B. 
C. 
D. 
17.
Which one connected properly?
A. 
B. 
C. 
D. 
18.
The resistance of a conductor increases with-
I: Increase in length
II: Increase in volume
III: Decrease in area
iv: Temperature
A. 
B. 
C. 
D. 
19.
The rheostat is used in the circuit to :
A. 
Increase the magnitude of current only
B. 
Decrease the magnitude of current only
C. 
increase or decrease the magnitude of current
D. 
To increase resistance only
20.
The total resistance?
A. 
B. 
C. 
D. 
21.
The work done to Move a unit charge from one point to another point is called?
A. 
B. 
C. 
D. 
22.
SI unit of electrical Potential Difference is Ampere (A).
23.
The commercial unit of electric power.
A. 
B. 
C. 
D. 
24.
We prefer parallel connection over series connection because:
A. 
The voltage will not be same so that electrical devices work properly
B. 
It offers less resistance and all the device work properly
C. 
It offers more resistance if one device fails to work none of the device work
D. 
It offers more resistance and more power is dissipated
25.
The relation between potential difference v and electrical current I given by:
A. 
B. 
C. 
D. 
E.