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- Multiple ChoicePlease save your changes before editing any questions.
The unit for inductance is ___________
Ohm
Henry
Farad
Ampere
- Multiple ChoicePlease save your changes before editing any questions.
The resistivity of the conductor depends on
area of the conductor.
length of the conductor.
type of material.
none of these.
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is not an expression power?
P=VI
P=I2R
P=V2/R
P=I/R
- Multiple ChoicePlease save your changes before editing any questions.
Conductance is expressed in terms of
ohm / m
m / ohm
mho / m
mho
- Multiple ChoicePlease save your changes before editing any questions.
The resistance of a 100 W, 200 V lamp is
100 ohm
200 ohm
400 ohm
1600 ohm
- Multiple ChoicePlease save your changes before editing any questions.
By using two wattmeter method, power can be measured in
3 - phase, 2 - wire system
3 - phase, 3 - wire system
3 - phase, 4 - wire system
All of these
- Multiple ChoicePlease save your changes before editing any questions.
Which among the following sentences is correct?
Lenz’s law is used to find the direction of induced current
Fleming’s right hand rule is used to find the direction of induced current
Fleming’s left hand rule is used to find the direction of force
All of these
- Multiple ChoicePlease save your changes before editing any questions.
According to Kirchoff’s voltage law,
The algebraic sum of all the e.m.f’s in the circuit is zero
Algebraic sum all the voltage drops in the circuit is zero
Algebraic sum of e.m.f’s plus algebraic sum of voltage drops is equal to zero
All of these
- Multiple ChoicePlease save your changes before editing any questions.
Alternating voltage can be generated by
By rotating a coil in a magnetic field
By rotating a magnetic field within a stationary coil
Either (a) or (b)
Neither (a) or (b)
- Multiple ChoicePlease save your changes before editing any questions.
Energymeter is a / an
Indicating instrument
Integrating instrument
Recording instrument
All of these
- Multiple ChoicePlease save your changes before editing any questions.
Reluctance in a magnetic material is a property by virtue of which it opposes the creation of
Electric flux
Magnetic flux
Electric field density
Electric lines of force
- Multiple ChoicePlease save your changes before editing any questions.
The S.I. unit of power is
Henry
Coulomb
Watt
Watt-hour
- Multiple ChoicePlease save your changes before editing any questions.
The property of the conductor due to which it passes current is called
Resistance
Reluctance
Conductance
Inductance
- Multiple ChoicePlease save your changes before editing any questions.
The insulation on a current carrying conductor is provided
To prevent leakage of current
To prevent a shock
Both of the above
None of the above
- Multiple ChoicePlease save your changes before editing any questions.
Active power and apparent power are respectively represented by?
kW and kVAR
kVAR and kVA
kVA and kVAR
kW and kVA