1. shape and Material. of electrode
2. depth to which electrode is driven into earth
3. specific resistance of sail
4. all of these
all of these
1. Photo emissive cell
2. Photo diode
3. Photo transistor
4. Photo voltaic cell
Photo voltaic cell
1. V1 and V2 will read 250 V each
2. V1 will read 200 V and V2 will read 300 V
3. V1 will read 300 V and V2 will read 200 V
4. V1 and V2 will read 0
V1 will read 200 V and V2 will read 300 V
1. zero lagging
2. zero leading
3. 0.5 lagging
4. 0.5 leading
1. a very low resistance of the meter would short the high unknown resistance
2. scale is highly cramped for high' resistance values
3. full-scale value of the meter may be exceeded
4. battery cannot supply the necessary current for proper meter detection
scale is highly cramped for high' resistance values
1. over-compensation for friction
2. mechanical vibrations
3. excessive voltage across the potential coil
4. stray magnetic fields
excessive voltage across the potential coil
1. eddy current disk
2. the aluminium frame- of the coil
3. damping vane in the airtight chamber
4. the coil spring attached to the moving
the aluminium frame- of the coil
1. dynamometer, voltage and current
2. dynamometer, Current and voltage
3. induction Voltage and current.
4. induction, current and voltage
dynamometer, Current and voltage
1. - 4.8 %
2. + 4.8 %
3. 99 %
4. 95.2 %
1. The power consumption of multiplier, becomes large average voltages.
2. The multipliers at high voltages have to be shielded in order to prevent capacitive currents.
3. The metering circuit is not electrically from the power circuit.
4. All of these.
All of these.