Resistance of a wire is yΩ. The wire is stretched to triple its length, then the resistance becomes

A)
y/3
B)
y/6
C)
3y
D)
6y

Correct Answer : Option (C) :   3y

Recently Updated in Ohms Law Questions
100 resistors of 100 ohms each arc connected in parallel. Their equivalent resistances will be
A)
1 ohm
B)
100 ohms
C)
10,000 ohms
D)
None of the above

Correct Answer :   10,000 ohms

A lamp of 100 W at 200 V is supplied current at 100 volts. It will be equivalent to the lamp of
A)
10 W
B)
25 W
C)
40 W
D)
50 W

Correct Answer :   25 W

The current passing through a resistor in a circuit is 1 A when the voltage across the same resistor is 10 V. What is the value of current when the voltage across the resistor is 8 V
A)
0.8 A
B)
8 A
C)
18 A
D)
80 A

Correct Answer :   0.8 A

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