(a) Magnetic screening (b) Wagner earthing device (c) Wave filters (d) Any of these Answer: (a)
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(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 ...
(a) Action of gravity (b) Mass of the pointer (c) Controlling Torque (d) Damping Torques Answer: (c)
(a) DC Ampere-hour meter (b) Watt-hour meter (c) Voltmeter (d) All of these Answer: (d)
(a) Sensors (b) Variable conversion elements (c) Signal processing elements (d) All of these Answer: (d)