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
