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Free download in PDF Resistor Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like IIT-JEE, AIIMS etc. These short solved questions or quizzes are provided by Gkseries.
(21)
If I3 = 100 µA, R3 = 50 MΩ, then V3 = __:
[A]
5000 V
[B]
500 V
[C]
5 V
[D]
0.5 V
(22)
If I2 = 100 µA, R2 = 50 kΩ, then V2 = __:
[A]
5000 V
[B]
500 V
[C]
5 V
[D]
0.5 V
(23)
If I1 = 50 mA, R1 = 50 kΩ, then V1 = __:
[A]
1 kV
[B]
2.5 kV
[C]
5 kV
[D]
10 kV
(24)
An unknown resistor has 5 mA current flowing through it when 10 volts are applied to it. For the same resistor, the application of 20 volts will result in the current flow of:
[A]
2 mA
[B]
5 mA
[C]
10 mA
[D]
50 mA
(25)
An electrical bulb draws 5 A current when connected to a 100-V wall outlet, the resistance of bulb is:
[A]
5 Ω
[B]
20 Ω
[C]
100 Ω
[D]
500 Ω
(26)
The potential difference across a 5 kΩ is 12 V. Find the current flowing through the resistor:
[A]
60 mA
[B]
2.4 mA
[C]
1.77 mA
[D]
0.998 mA
(27)
The water heating rod draws 10 A current when connected to certain power source. The resistance of rod is 12 Ω. The source voltage is:
[A]
1.2 V
[B]
120 V
[C]
1200 V
[D]
None of these
(28)
An electric kettle with 50-Ω heat element is powered by a 230-V wall outlet. The current flowing through kettle is:
[A]
0.217 A
[B]
4.6 A
[C]
10.86 A
[D]
11500 A
(29)
Components which obey Ohm’s law are known as:
[A]
Resistors
[B]
Ohmic components
[C]
Non-ohmic components
[D]
None of these
(30)
Ohmic components have a __________ V-I curve:
[A]
Straight line VI curve
[B]
Parabolic VI curve
[C]
Non-linear VI curve
[D]
Sinusoidal VI curve
Answer: Straight line VI curve
31
Unit of resistance is:
[A]
Volt
[B]
Watt
[C]
Ohms
[D]
Ampere
32
Unit of power is:
[A]
Volt
[B]
Watt
[C]
Coulomb
[D]
Ampere
33
Unit of current is:
[A]
Volt
[B]
Watt
[C]
Coulomb
[D]
Ampere
34
Unit of voltage is:
[A]
Volt
[B]
Watt
[C]
Coulomb
[D]
Ampere
35
If V = 50 V and I = 5 A, then R = ___:
[A]
50 Ω
[B]
5 Ω
[C]
10 Ω
[D]
2 Ω
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