Question # 1

The ratio of the magnitude of charge on one of the two conductors in proximity to the potential difference between the two is called.

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Inductance

Reactance

Resistance

Capacitance

What is the term for an motion of charge from one region to another.

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electric charge

Electric current

Electric field

Electric potential

The direction of force on a moving negative charge will be.

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Opposite to that of positive charge

Similar to that of positive charge

At right angel to the positive charge

Parallel to the positive charge

Which one fo the following is based on the diffraction and repulsion of electric charge.

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Capacitor motor

Transformer

Induction motor

synchronous motor

The current passing through the coil of a galvanometer is directly proportional to

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Resistance

voltage

Angle of deflection

conductance

The electric bulb does not obey Ohm's law because.

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Current changes

Resistance changes

Heat is produced

All of these

The electric current can be defined by its

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Chemical effect

Magnetic effect

Heating effect

All of these

Which one of the following describes a measure of opposition to alternating current.

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Electrical impedance

Capacitance

Inductance

Admittance

The permeability of air is

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0.5

zero

infinity

Unity

An electrical device is rated at 12 W , 2 A How many 1.5 V batteries are needed in the device.

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2

4

6

8

If the source of emf is traversed from negative to positive terminal the potential charge.

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Is negative

Is positive

Is zero

Remain the same

Which of the following is an electrostatic generator.

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Winshurst machines

Van de Graff generator

Electrophorus

All of the above

The core of a transfer is made of iron because

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Iron is a good electric material

Iron is cheaper than copper

Iron is easily magnetized and demagnetized

Iron makes a good permanent magnet

The permittivity of a medium.

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Is a measure of the density

Is equal to unity for air

Depends on the charge derisory of the medium

Determines the magnitude of an electric field that can be established by the medium

A resistor whose resistance decreases with increasing intensity is.

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Light dependent resistor

Thermistor

Thermocouple

Strain gauge

A magnetic field is said to exist at a point if

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A force is exerted on a charge placed at that point

A magnetic pole exists at that point

An ampersand current loop surrounds the point

A force not felt by a static charge acts on a moving charge placed at that point

The susceptibility of a paramagnetic material is

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negative

Positive

Zero

Infinity

At series resonance in L-C-R circuit the impedance is equal to.

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Ohmic resistance

Inductive reactance

Capacitive reactance

Inductive reactance minus capacitive reactance

When a balloon sticks to the whiteboard It is an example of.

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Conoduction

Induction

Polarization

Conservation of charge

Which two terminal passive electronic component implements electrical resistance as a circuit element.

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Capacitor

Inductor

Resistor

Transformer

The unit of time constant RC is.

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Second

second-1

Second -2

Second 2

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