This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 3 Current Electricity – Quiz 35 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 3 Current Electricity Quiz 35 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which cell is non-rechargeable? A) Primary cell. B) Secondary Cell. C) All the above. D) None of the above. Show Answer Correct Answer: A) Primary cell. 2. In a parallel circuit, 0.8 A arrives at a junction between two wires. It splits with 0.2 A going down the first wire. What would the ammeter reading on the second wire be? A) 0.8 A. B) 0.6 A. C) 0.2 A. D) It will depend on the resistance of the components down that wire. Show Answer Correct Answer: B) 0.6 A. 3. Two magnets are stuck end to end by a magnetic force. Which statement best describes these magnets? A) The north poles of the magnets are attracted to each other. B) The south poles of the magnets are attracted to each other. C) The south pole of one magnet is repelled by the north pole of the other magnet. D) The north pole of one magnet is attracted to the south pole of the other magnet. Show Answer Correct Answer: D) The north pole of one magnet is attracted to the south pole of the other magnet. 4. You are going to build an electromagnet for a lab investigation. Which of the following lab supplies do you need to build an electromagnet? A) Insulated wire, compass, iron bar. B) Iron bar, battery and holder, light bulb. C) Compass, iron bar, light bulb. D) Insulated wire, iron bar, battery and holder. Show Answer Correct Answer: D) Insulated wire, iron bar, battery and holder. 5. What type of circuit only provides 1 pathway for electrical current? A) Parallel Circuit. B) Series Circuit. C) Single Circuit. D) Multiple Circuit. Show Answer Correct Answer: B) Series Circuit. 6. The voltage across a kettle is 230 V. Calculate the energy supplied if 100 C of charge pass through the kettle's wires. A) 0.44 J. B) 2.3 J. C) 440 kJ. D) 23 kJ. Show Answer Correct Answer: D) 23 kJ. 7. Emf is defined as A) Potential difference across the terminals of a cell when not in use. B) Work done in moving a unit positive charge in the externalcircuit and within the cell. C) Both a and b. D) Potential difference across the terminals of a cell when it is in use. Show Answer Correct Answer: C) Both a and b. 8. A type of automatic safety mechanism found in circuits that open when the current becomes dangerously high. A) Circuit breaker. B) Bulb. C) Parallel circuit. D) Circuit stopper. Show Answer Correct Answer: A) Circuit breaker. 9. Plastic straw A) Conductor. B) Insulator. C) All the above. D) None of the above. Show Answer Correct Answer: B) Insulator. 10. What happens to the magnetic field around a wire when the current through it is increased? A) The magnetic field weakens. B) The magnetic field strengthens. C) The magnetic field disappears. D) The magnetic field remains unchanged. Show Answer Correct Answer: B) The magnetic field strengthens. 11. "The total current in a parallel circuit equals the sum of the individual branch currents." A) Ohm's Law. B) Kirchhoff's Voltage Law. C) Kirchhoff's Current Law. D) Bolen's Law. Show Answer Correct Answer: C) Kirchhoff's Current Law. 12. How must voltage be measured? A) In series. B) In series or parallel. C) In parallel. D) None of the above. Show Answer Correct Answer: C) In parallel. 13. The temperature coefficient for a wire is 0.00125$^{0}$C$^{-1}$.At 27$^{0}$C, its resistance is 1ohm.The temperature at which the resistance becomes 2ohms is A) 1154K. B) 1100K. C) 1400K. D) 1127K. Show Answer Correct Answer: B) 1100K. 14. What happens to the electrons in a conductor when a current flows through it? A) They move randomly. B) They move in a specific direction. C) They stop moving. D) They move in circles. Show Answer Correct Answer: B) They move in a specific direction. 15. If we get the resistance of the wire as 6 ohm, on introducing a 2 ohm resistance in the resistance box, in a meter bridge circuit, find the corresponding balancing length. A) 3 cm. B) 25 cm. C) 75 cm. D) None of the above. Show Answer Correct Answer: C) 75 cm. 16. Thermopile works on the principle of A) Joule effect. B) Peltier effect. C) Thomson effect. D) Seebeck effect. Show Answer Correct Answer: D) Seebeck effect. 17. The rate of flow of electric charge in a conductor is referred to as ..... A) Circuit resistance. B) Battery voltage. C) Electric current. D) Conduction electrons. Show Answer Correct Answer: C) Electric current. 18. Which of the following is an example of static electricity? A) A lightning bolt striking a tree. B) A battery powering a flashlight. C) A fan running on electricity. D) A toaster heating bread. Show Answer Correct Answer: A) A lightning bolt striking a tree. 19. Energy stored in the nucleus of an atom. A) HYDRO & TIDAL POWER. B) SOLAR ENERGY. C) WIND ENERGY. D) NUCLEAR ENERGY. Show Answer Correct Answer: D) NUCLEAR ENERGY. 20. What are the sources of mechanical energy mentioned in the text? A) Wind, moving water, and burning fossil fuels. B) Solar power, geothermal energy, and nuclear power. C) Biomass, tidal energy, and hydrogen fuel. D) None of the above. Show Answer Correct Answer: A) Wind, moving water, and burning fossil fuels. 21. In a Whetstone's bridge, all the four arms have equal resistance R. If resistance of thegalvanometer arm is also R, then equivalent resistance of the combination is A) R. B) 2R. C) R/2. D) R/4. Show Answer Correct Answer: A) R. 22. Ohm's law can be written in vector form as ..... A) $\overrightarrow{J}$ $\sigma$ $\overrightarrow{E}$. B) $\overrightarrow{J}$ $\rho$ $\overrightarrow{E}$. C) $\overrightarrow{J}$ $\overrightarrow{E}$. D) None of the above. Show Answer Correct Answer: A) $\overrightarrow{J}$ $\sigma$ $\overrightarrow{E}$. 23. The positive and negative ends of a battery A) Filament. B) Wires. C) Duracell. D) Terminals. Show Answer Correct Answer: D) Terminals. 24. What is 1WHr? A) 3.6x10$^{6}$ J. B) 3600 J. C) 36X10$^{3}$ J. D) 36X10$^{5}$. Show Answer Correct Answer: B) 3600 J. 25. What do fuel cells, batteries, and solar cells have in common? A) They all produce static electricity. B) They are all sources of direct current. C) They are all sources of alternating current. D) They can all be used to power automobiles. Show Answer Correct Answer: B) They are all sources of direct current. ← 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 3Class 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 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books