Physics Practice: Electricity (Mock Test 5 - Ultimate Comprehensive)
1. The unit of electrical energy consumed in households is ________.
2. When two equal resistors are connected in series, their equivalent resistance is ________ that of a single resistor.
3. A safety device based on the heating effect of current is the ________.
4. The potential difference between the Live and Neutral wires in Indian households is usually ________.
5. Which of the following is an insulator?
6. A current of 1 Ampere is equal to the flow of ________ charge per second.
7. The resistance of a wire ________ as its thickness (area) increases.
8. In a 3-pin plug, the top-most pin is for ________.
9. $P = V^2 / R$ is a formula used to calculate ________.
10. Electroplating is used to ________ metals like iron from rusting.
11. A wire through which charge flows is called a ________.
12. Which of the following is not a property of an Ideal Voltmeter?
13. The filament of a bulb is made of Tungsten because it has a very ________.
14. $V / I = \text{Constant}$ is the mathematical form of ________ Law.
15. The electrode connected to the negative terminal of the battery is the ________.
16. The commercial unit $1\text{ unit}$ of electricity is actually ________.
17. MCB stands for ________.
18. The current in a series circuit is ________ through all parts of the circuit.
19. If two $10\ \Omega$ resistors are connected in series, the equivalent resistance is ________.
20. Static electricity is produced by ________.