Question # 1

A device used to detect and measure charge is.

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A voltmeter

An ammeter

An electroscope

An amplifier

An electric motor could be used as a

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Battery

Capacitor

Dynamic

Transofrmer

Which of the following remains unaffected in a magnetic field.

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a particles

b partciles

gama particles

Electrons

The charge per unit volt which is a constant property of the system is known as the

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Dielectric constant

Permitivity

Capactance

Inductance

When a conductor situated in a dielectric is charted the energy resides.

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Only on the dielectric

Only on medium surrounding charge

On the dielectric and medium both

Only on the type of the charge

An ideal voltage source has zero.

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Current

Electromotive force

Voltage

Internal resistance

The process due to which current flows only during alternate half cycle is known as.

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Filtration

saturation

Half wave rectification

Full wave rectification

Which we double the voltage in a simple electric circuit, we double the

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Current

Power

Resistance

Both a and b

An object gain excess negative charge after being rubbed against another object which is.

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Neutral

Negatively charged

Positively charged

either a, b, or c

The value of electric field intensity is.

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Volt

Coulomb

Newton

Newton coulomb

The magnetic force is simply a

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Reflecting force

Deflecting force

Restoring force

Gravitational force

What is the power factors of wattles current.

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Infinity

Unity

0.5

Zero

A galvanometer can be converted into voltmeter by connecting in series with the galvanometer a

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Low resistance

High resistance

Resistance of intermediate range

Shunt

The SI unit of magnetic flux is

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gauss

Maxwell

Oersted

Water

In an A.C. circuit the current.

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Is in phase with voltage

Leads the voltage

Lags the voltage

Any of these depending upon the circumstances

Which of the following parameters is irrelevant for a fuse wire.

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Its radius

Current flowing through it.

Its specific resistance

Its length

Which one of the following materials has negative temperature coefficient.

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Conductors

Semiconductors

Insulators

Covalent bonds

Electric field lines

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Start from a negative charge and terminal ate on a positive charge

Never cross each other

Always cross each other

Leaving a positive charge are not proportional to the maginitud of charge

The current passing through the switch s will be

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Zero

3 A

4.5 A

10 A

If the current in a wire which is placed perpendicular to a magnetic fields increases the force on the wire.

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Increases

Decreases

Remain the same

Will be zero

Which of the given factors is increased in a step down transformer.

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Voltage

Current

Wattage

Resistance

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