This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Twelve identical wires of resistance 2 ohm, are joined to form a skeleton cube. The Current enters at one corner and leaves at the diagonally opposite corner find the total resistance between these corners A) 2.5ohm. B) 5ohm. C) 5/3ohm. D) 1ohm. Show Answer Correct Answer: C) 5/3ohm. 2. What is the relationship between voltage, current, and resistance in a circuit? A) Current is independent of voltage and resistance. B) Voltage is the same as current (V = I). C) Voltage is equal to current multiplied by resistance (V = I * R). D) Resistance is equal to voltage divided by current (R = V / I). Show Answer Correct Answer: C) Voltage is equal to current multiplied by resistance (V = I * R). 3. The temperature coefficient of resistance of an alloy used for making resistor is A) Small and positive. B) Small and negative. C) Large and positive. D) Large and negative. Show Answer Correct Answer: A) Small and positive. 4. 72 cells of internal resistance 5 Ohm and emf 2.0 volt are used to send current through an external circuit of resistance 10 Ohm. What is the maximum current in the circuit A) 6/35 amp. B) 12/35 Amp. C) 24/35 Amp. D) 35/24 Amp. Show Answer Correct Answer: B) 12/35 Amp. 5. What type of resistors do not obey Ohm's law? A) Ohmic resistors. B) Non-ohmic resistors. C) Metallic resistors. D) Alloy resistors. Show Answer Correct Answer: B) Non-ohmic resistors. 6. ..... did an experiment using kite and key during a thunderstrom. A) Galileo. B) Thomas Edison. C) Benjamin Franklin. D) None of the above. Show Answer Correct Answer: C) Benjamin Franklin. 7. Kirchhoff's rule can be used to find ..... and voltage in the circuit. A) Potential difference. B) Energy. C) Current. D) None of the above. Show Answer Correct Answer: C) Current. 8. Charging a cell phone is an example of A) Static Electricity. B) Current Electricity. C) All the above. D) None of the above. Show Answer Correct Answer: B) Current Electricity. 9. In resistor tolerance of silver is ..... A) 10. B) 10$^{-1}$. C) 10$^{-2}$. D) 10%. Show Answer Correct Answer: D) 10%. 10. What is a Parallel circuit? A) Has only one path. B) Has more than one path. C) Allows energy to travel through easily. D) Has only one light bulb. Show Answer Correct Answer: B) Has more than one path. 11. A metal wire is connected in the left gap and a semiconductor is connected in the right gap of meter-bridge. The balance is found on bridge wire. Both are heated so that change in resistance in them are same. Then the balancing point A) Will shift towards right. B) Will shift towards left. C) Will not shift. D) Depends on rise of temperatures. Show Answer Correct Answer: A) Will shift towards right. 12. If you add a second load to your series circuit, what will happen to the voltage in each load? A) Decrease. B) Increase. C) Stay the same. D) None of the above. Show Answer Correct Answer: B) Increase. 13. The movement of electrons from atom to atom in a line results in a flow of ..... A) Amperage. B) Electric current. C) Electromagnetic connectors. D) None of the above. Show Answer Correct Answer: B) Electric current. 14. Provides a constant flow of electricity A) Static Electricity. B) Current Electricity. C) All the above. D) None of the above. Show Answer Correct Answer: B) Current Electricity. 15. What is one possible reason why it's a good idea to conserve electricity? A) It is often produced by burning fossil fuels, which are a polluting, non-renewable resource. B) Power companies only give each home a limited amount of electricity every day. C) Using too much electricity can start dangerous electrical fires. D) Using too much electricity can cause power plants to break down. Show Answer Correct Answer: A) It is often produced by burning fossil fuels, which are a polluting, non-renewable resource. 16. Which digit on the 1$^{st}$ band does the color yellow denote on a resistor color band? A) 3. B) 2. C) 4. D) 7. Show Answer Correct Answer: C) 4. 17. Ohm's law is not applicable to ..... A) Dc circuits. B) High currents. C) Small resistors. D) Semi-conductors. Show Answer Correct Answer: D) Semi-conductors. 18. An object with a negative charge will A) Attract an object with a positive charge. B) Attract the north pole of a magnet. C) Repel an object with a positive charge. D) Attract an object with a negative charge. Show Answer Correct Answer: A) Attract an object with a positive charge. 19. Which is the best conductor of electricity? A) Iron. B) Silver. C) Copper. D) Carbon. Show Answer Correct Answer: B) Silver. 20. The third ring in the resistor indicates the ..... A) Significant figure. B) Tolerance. C) Multiplier. D) Resistivity. Show Answer Correct Answer: C) Multiplier. 21. Measured in amperes or amps A) Voltage. B) Current. C) Resistance. D) None of the above. Show Answer Correct Answer: B) Current. 22. If the power source was set on 4.0V and there were 1 lights, what would the voltage be across the light? A) 4.0 V. B) 2.0 V. C) 1.0 V. D) 0.0 V. Show Answer Correct Answer: A) 4.0 V. 23. What are the three main parts of a circuit? A) Load, power, switch. B) Pathway, load, power. C) Switch, pathway, pathway. D) Load, power, buzzer. Show Answer Correct Answer: B) Pathway, load, power. 24. What is the resistance of a conductor directly proportional to? A) Area of cross-section. B) Length of the conductor. C) Temperature. D) Voltage. Show Answer Correct Answer: B) Length of the conductor. 25. What are the components of a simple circuit? A) Wires, switch, outlet. B) Battery, switch, motor. C) Wires, buzzer, motor. D) Wires, battery, load. Show Answer Correct Answer: D) Wires, battery, load. ← PreviousNext →Related QuizzesClass 12 Physics (Part I) Chapter 3 Current Electricity Quiz 1Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 2Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 4Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 5Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 6Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 7Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 8Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 9Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 10Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books