# Ohms law MCQ

NEET  Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics Ohms law Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

## MCQ 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

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: (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

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

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

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

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

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

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