## Georg Ohm Quiz Questions

1. What is the unit of electrical resistance?

(a) Ampere

(b) Volt

(c) Ohm

(d) Watt

2. Who formulated Ohm’s law?

(a) Albert Einstein

(b) Isaac Newton

(c) Georg Ohm

(d) Nikola Tesla

3. Ohm’s law states the relationship between which three quantities?

(a) Current, voltage, and resistance

(b) Power, voltage, and current

(c) Capacitance, inductance, and resistance

(d) Force, mass, and acceleration

4. What is the mathematical formula for Ohm’s law?

(a) V = IR

(b) P = VI

(c) Q = It

(d) F = ma

5. The resistivity of a material generally increases with:

(a) Increase in temperature

(b) Decrease in temperature

(c) No change with temperature

(d) Depends on the material

6. The resistivity of a material generally decreases with:

(a) Increase in temperature

(b) Decrease in temperature

(c) No change with temperature

(d) Depends on the material

7. Georg Ohm was a scientist from which country?

(a) France

(b) Germany

(c) England

(d) Italy

8. Ohm’s law is applicable to which type of materials?

(a) Conductors only

(b) Insulators only

(c) Semiconductors only

(d) All of the above

9. If the voltage across a resistor is doubled, what happens to its power?

(a) It doubles

(b) It quadruples

(c) It remains the same

(d) It is halved

10. What is the color code for a 100-ohm resistor?

(a) Brown, Black, Brown

(b) Black, Brown, Black

(c) Brown, Black, Black

(d) Black, Brown, Brown

11. Ohm’s law is based on the principle of:

(a) Energy conservation

(b) Charge conservation

(c) Momentum conservation

(d) Mass conservation

12. In Ohm’s Law, I represents:

(a) Voltage

(b) Current

(c) Resistance

(d) Power

13. The reciprocal of resistance is called:

(a) Conductance

(b) Capacitance

(c) Inductance

(d) Impedance

14. In the formula V = IR, R stands for:

(a) Voltage

(b) Current

(c) Resistance

(d) Power

15. The unit of conductance is:

(a) Siemens

(b) Ampere

(c) Volt

(d) Ohm

16. Ohm’s law is a fundamental principle in:

(a) Electronics

(b) Electromagnetism

(c) Thermodynamics

(d) Optics

17. In Ohm’s Law, V represents:

(a) Voltage

(b) Current

(c) Resistance

(d) Power

18. The unit of voltage is:

(a) Ampere

(b) Volt

(c) Ohm

(d) Watt

Answer: b) Volt

19. The resistance of a conductor depends on its:

(a) Length

(b) Area of cross-section

(c) Material

(d) All of the above

20. The resistance of a conductor is directly proportional to its:

(a) Length

(b) Area of cross-section

(c) Both length and area of cross-section

(d) Neither length nor area of cross-section

21. The resistance of a conductor is inversely proportional to its:

(a) Length

(b) Area of cross-section

(c) Both length and area of cross-section

(d) Neither length nor area of cross-section

22. The resistivity of a material is:

(a) A property of the material only

(b) A property of the conductor only

(c) A property of both the material and the conductor

(d) Neither a property of the material nor the conductor

23. The unit of resistivity is:

(a) Ohm-meter

(b) Ohm/meter

(c) Meter/ohm

(d) Ohm

24. The relation between resistivity and resistance is:

(a) R = ?l / A

(b) ? = Rl / A

(c) l = ?R / A

(d) A = ?R / l

25. The resistivity of a material depends on its:

(a) Temperature

(b) Nature of the material

(c) Both temperature and nature of the material

(d) Neither temperature nor nature of the material

## Georg Ohm Quiz Questions with Answers

1. What is the unit of electrical resistance?

(c) Ohm

2. Who formulated Ohm’s law?

(c) Georg Ohm

3. Ohm’s law states the relationship between which three quantities?

(a) Current, voltage, and resistance

4. What is the mathematical formula for Ohm’s law?

(a) V = IR

5. The resistivity of a material generally increases with:

(a) Increase in temperature

6. The resistivity of a material generally decreases with:

(d) Depends on the material

7. Georg Ohm was a scientist from which country?

(b) Germany

8. Ohm’s law is applicable to which type of materials?

(a) Conductors only

9. If the voltage across a resistor is doubled, what happens to its power?

(b) It quadruples

10. What is the color code for a 100-ohm resistor?

(a) Brown, Black, Brown

11. Ohm’s law is based on the principle of:

(a) Energy conservation

12. In Ohm’s Law, I represents:

(b) Current

13. The reciprocal of resistance is called:

(a) Conductance

14. In the formula V = IR, R stands for:

(c) Resistance

15. The unit of conductance is:

(a) Siemens

16. Ohm’s law is a fundamental principle in:

(a) Electronics

17. In Ohm’s Law, V represents:

(a) Voltage

18. The unit of voltage is:

(b) Volt

19. The resistance of a conductor depends on its:

(d) All of the above

20. The resistance of a conductor is directly proportional to its:

(a) Length

21. The resistance of a conductor is inversely proportional to its:

(b) Area of cross-section

22. The resistivity of a material is:

(a) A property of the material only

23. The unit of resistivity is:

(a) Ohm-meter

24. The relation between resistivity and resistance is:

(a) R = ?l / A

25. The resistivity of a material depends on its:

(c) Both temperature and nature of the material