Engineering physics and basic electrical engineering: units and measurements, work power energy, current voltage resistance, basic circuits - One Line Questions

1. A 100 Ohm resistor has 10 Volts applied across it. What is the current flowing through it? 0.1 A
2. If a 60W light bulb is used for 10 hours, how much energy does it consume in kilowatt-hours (kWh)? 0.6 kWh
3. A 12V battery is connected to a 4 Ohm resistor. What is the current flowing? 3 A
4. What is the total resistance of two 10 Ohm resistors connected in series? 20 Ohms
5. What is the total resistance of two 10 Ohm resistors connected in parallel? 5 Ohms
6. What is the SI unit of electric potential difference (voltage)? Volt
7. What is the SI unit of electric charge? Coulomb
8. What is the unit of electric charge? Coulomb
9. A circuit with a break in it, preventing current flow, is called an: Open circuit
10. The ability of a material to oppose the flow of electric current is called: Resistance
11. Which quantity is defined as the work done per unit charge? Voltage
12. In a series circuit, the current flowing through each component is: The same
13. Which quantity is the rate of doing work? Power
14. Kirchhoff's Current Law (KCL) is based on the principle of conservation of: Charge
15. If the voltage across a resistor is doubled, while the resistance remains constant, the current will: Double
16. If the length of a wire conductor is doubled, its resistance will: Double
17. In a parallel circuit, if one branch is opened, the current in other branches will: Remain unchanged
18. If the resistance of a conductor is increased, its ability to conduct current: Decreases
19. When a conductor is short-circuited, the resistance becomes approximately: Zero
20. What is the SI unit of force? Newton
21. The SI unit of power is: Watt
22. What is the unit of electrical energy consumption in household meters? Kilowatt-hour
23. What is the unit of electrical potential energy? Joule
24. Which of the following is a unit of power? Joule per second
25. The formula for kinetic energy (KE) is: KE = 1/2 mv^2
26. What is the unit of electrical power rating for appliances? Watts
27. The energy stored in a charged capacitor is a form of ______ energy. Potential
28. Potential energy is the energy of: Position or configuration
29. Which of the following is a fundamental unit in the SI system? Ampere
30. The SI unit of energy is: Joule
31. What is the unit of electrical conductance? Siemens
32. What is the unit of measurement for electrical resistance in the Imperial system? There is no distinct Imperial unit; Ohm is universally used.
33. Which law describes the conservation of energy in an electrical circuit? Kirchhoff's Voltage Law
34. What is the formula for calculating power (P) when voltage (V) and current (I) are known? P = V * I
35. A circuit where components are connected end-to-end is called a: Series circuit
36. Kinetic energy is the energy of: Motion
37. The energy stored in an inductor due to current flow is a form of ______ energy. Magnetic
38. Which physical quantity is measured in Joules? Energy
39. What does Ohm's Law state? Voltage is directly proportional to resistance and current
40. The rate of flow of electric charge is called: Current
41. The product of voltage and current represents: Power
42. A voltmeter is always connected in ______ with the component across which the voltage is to be measured. Parallel
43. An ammeter is always connected in ______ with the component through which the current is to be measured. Series
44. Resistance is measured in: Ohms
45. In a parallel circuit, the voltage across each component is: The same
46. Work done is defined as force multiplied by: Displacement in the direction of the force
47. Which of the following is the SI unit of electric current? Ampere
48. What is the SI unit of electrical resistance? Ohm
49. What is the SI unit of electric current? Ampere
50. According to Joule's Law of Heating, the heat produced in a conductor is proportional to: The square of the current, resistance, and time