NEET Physics is the very imporatant paper in the Medical Entrance EXAM. So these NEET Physics MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Physics objective questions on air pollution . NEET Physics Ohms law Multiple Choice Questions
MCQs on Ohms law :
1. If a current of 5 Amperes flows through the conductor. The number of electrons per second will is
(A) 1.6 x 10-19
(B) 3.12 x 1019
(C) 4 x 1019
(D) 7.68 x 1020
Answer
Answer: (B) 3.12 x 1019
2. Ohm’s law is true for
(A) Metallic conductors at low temperature
(B) Metallic conductors at high temperature
(C) For electrolytes, when current passes through them
(D) For diode when current flows
Answer
Answer: (A) Metallic conductors at low temperature
3. An example of non-ohmic resistance is
(A) Diode
(B) Tungsten wire
(C) Carbon resistance
(D) Copper wire
Answer
Answer: (A) Diode
4. In a conductor, if 6-coulomb charge flows for 2 seconds. The value of electric current will be
(A) 3 ampere
(B) 3 volts
(C) 2 amperes
(D) 2 volts
Answer
Answer: (A) 3 ampere
5. An EMF source of 8.0 V is connected to a purely resistive electrical appliance. An electric current of 2.0 A flows through it. What is the resistance offered by the electrical appliances?
(A) 4 ohm
(B) 6 ohm
(C) 2 ohm
(D) 3 ohm
Answer
Answer: (A) 4 ohm
6. A potential difference of 10 V is applied across a conductor whose resistance is 2.5 ohm. What is the value of current flowing through it?
(A) 4 amperes
(B) 2 amperes
(C) 6 amperes
(D) 10 amperes
Answer
Answer: (A) 4 amperes
7. If the conductor resistance is 50 ohm and the current passing through it is 5 A. What is the value of potential difference?
150 V
250 V
50 V
15 V
Answer
Answer: (B) 250 V
Q8: When the length of the conductor is doubled and the area of cross-section remains the same then its resistance
(A) Remains the same
(B) Will be doubled
(C) Will become half
(D) Will increase by four times
Answer
Answer: (B) Will be doubled
Q9: 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) 80 A
(D) 18 A
Answer
Answer: (A) 0.8 A
Q10: Two resistors R1 and R2 with resistance 5 ohms and 10 ohms respectively are connected in series. The voltage across R1 is 4 V. What will be the value of current across R2.
(A) 0.8 A
(B) 8 A
(C) 80 A
(D) 18 A
Answer
Answer: (A) 0.8 A