(a) Magnetic screening (b) Wagner earthing device (c) Wave filters (d) Any of these Answer: (a)

(a) Voltmeter (b) Wattmeter (c) Energy meter (d) Power factor meter Answer: (c)

(a) Dead (b) Oscillating (c) Slow and lethargic (d) Fast and sensitive Answer: (c)

(a) Non-conducting and Non-magnetic material (b) Non-conducting and magnetic material (c) Conducting and magnetic material (d) Conducting and Non-magnetic material Answer: (d)

(a) Magnetically (b) Electrostatically (c) Thermally (d) Any of these Answer: (d)

(a) Is inserted in series in a circuit and current to be measured flows through it (b) Is inserted in series in a circuit and part of the current to be measured flows through it (c) Is connected in parallel in a ...