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Resistor MCQs | Resistor Multiple Choice Questions and Answers

Free download in PDF Resistor Multiple Choice 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.
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(1) The statement which correctly represents Ohm’s law:
[A] V = IR
[B] V = R/I
[C] R = VI
[D] I = R/V
Answer: V = IR
(2) A 10 ohms resistor is powered by a 5-V battery. The current flowing through the source is:
[A] 10 A
[B] 50 A
[C] 2 A
[D] 0.5 A
Answer: 0.5 A
(3) Repeat the above problem for resistor values of 30 ohms each when the source is 60 V.
[A] 0.25 A
[B] 0.5 A
[C] 2 A
[D] 4 A
Answer: 4 A
(4) Two resistors having values 18 ohms and 50 ohms are connected in series to an unknown source. An ammeter is connected to the circuit which reads 2 A. Find the input voltage to the circuit:
[A] 36 V
[B] 100 V
[C] 136 V
[D] 168 V
Answer: 136 V
(5) Two parallel resistors both having their values 50 and 60 ohms are connected in parallel. The overall current provided by the 100 V source is:
[A] 1.72 A
[B] 2.88 A
[C] 3.66 A
[D] 4.52 A
Answer: 3.66 A
(6) Two resistors having values 5 ohms and 10 ohms are connected in series to a 10 V source. Find the current flowing through the circuit:
[A] 0.66 A
[B] 1.5 A
[C] 2 A
[D] 2.5 A
Answer: 1.5 A
(7) If 1st band = Brown; 2nd band = Black; 3rd band = Brown; and I = 50 mA, then by using Ohm law find the value of source voltage:
[A] 0.5 V
[B] 5 V
[C] 50 V
[D] 500 V
Answer: 5 V
(8) If V9 = 50 V, I9 = 25 μA, then R9 = __:
[A] 2 MΩ
[B] 2 GΩ
[C] 1250 MΩ
[D] 1250 GΩ
Answer: 2 GΩ
(9) If V8 = 15 kV, I8 = 2 nA, then R7 = __:
[A] 7500 kΩ
[B] 7500 GΩ
[C] 30 kΩ
[D] 30 GΩ
Answer: 7500 GΩ
(10) If V5 = 99 kV, R5 = 33 GΩ, then I5 = __:
[A] 5 A
[B] 5 mA
[C] 5 µA
[D] 5 nA
Answer: 5 nA
(11) If V6 = 22 V, R6 = 11 kΩ, then I6 = __:
[A] 5 A
[B] 5 mA
[C] 5 µA
[D] 5 nA
Answer: 5 nA
(12) If V7 = 10 V, I7 = 1 μA, then R7 = __:
[A] 10 kΩ
[B] 10 MΩ
[C] 0.1 kΩ
[D] 0.1 MΩ
Answer: 10 MΩ
(13) A resistor is color-coded with four bands, the first one being brown, second, black, third red, and fourth gold. The resistor connects to a 10 V source. Find the current flowing through the resistor.
[A] 1 mA
[B] 10 mA
[C] 100 mA
[D] 1A
Answer: 10 mA
(14) If 1st band = Yellow; 2nd band = Violet; 3rd band = Brown; and V = 47 V, then I = ___?
[A] 0.1 A
[B] 0.1 mA
[C] 100 mA
[D] 470 mA
Answer: 0.1 A
(15) If 1st band = Red; 2nd band = Red; 3rd band = Red; and V = 44 V, then I = ___?
[A] 20 A
[B] 20 mA
[C] 44 A
[D] 44 mA
Answer: 20 mA
(16) If 1st band = Brown; 2nd band = Black; 3rd band = Green; and V = 50 V, then I = ___?
[A] 1 mA
[B] 100 μA
[C] 5 mA
[D] 50 μA
Answer: 50 μA
(17) If 1st band = Brown; 2nd band = Black; 3rd band = Orange; and I = 50 mA, then by using the formula of Ohm’s law find the value of voltage source which powers the source:
[A] 0.5 V
[B] 5 V
[C] 50 V
[D] 500 V
Answer: 500 V
(18) Two parallel resistors both having their values 28 ohms are connected in parallel. The overall current provided by the 28 V source is.
[A] 1 A
[B] 2 A
[C] 4 A
[D] 8 A
Answer: 2 A
(19) If 1st band = Orange; 2nd band = Orange; 3rd band = Orange; and I = 10 mA, then by using the formula of Ohm’s law find the value of voltage source which powers the source:
[A] 3 V
[B] 33 V
[C] 330 V
[D] 500 V
Answer: 330 V
(20) If V4 = 50 V, R4 = 10 GΩ, then I4 = __:
[A] 5 A
[B] 5 mA
[C] 5 µA
[D] 5 nA
Answer: 5 nA
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