Question # 1

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

Choose an answer

Electrical impedance

Capacitance

Inductance

Admittance

Which of the following defines P.E. per unit charge.

Choose an answer

Electric current

Charges

Potential

Electric field

If work must be done by an outside agent attempting tobring two point charges close together.

Choose an answer

They are of opposite signs

The field is not conservative

The work is recoverable when they separate

The P.E. of the charges is reduced by the amount of the work done

At high frequency the current through a capacitor will be

Choose an answer

Small

Zero

Large

Infinity

The direction of electric field line surround the test charge -q id

Choose an answer

Parallel

Perpendicular

Radially outward

Radially inward

Capacitive reactance is measured in

Choose an answer

Henrys

Ohms

mhos

electron volts

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

Choose an answer

Opposite to that of positive charge

Similar to that of positive charge

At right angel to the positive charge

Parallel to the positive charge

Charge to mass ration of an electron is determined by using the relation.

Choose an answer

e/m = B/rv

e/m = r/vB

e/m = V/Br

e/m = v/r

Force acting on a test charge between the plates of a parallel plate capacitor is F. If one of the plates is removed teh force on the same test charge will be.

Choose an answer

Zero

F/2

F

2 F

Para magnetism is.

Choose an answer

A distrotion effect

An orientation effect

A skin effect

A resistance

One volt is equal to.

Choose an answer

One joule per coulomb

One dyne per coulomb

One newton per coulomb

One watt second

Two magnetic lines of force

Choose an answer

Out near the poles

Never cut each other

Cut at a neutral point

Cut according to position of the magnet

The relation between the voltage and current that flows in a resistor is.

Choose an answer

V = 1/R

R = vi

V = I2 R

I = V /R

Which method of charging is involved in making lightning.

Choose an answer

Induction

Friction

Contact

Convection

Why is an oxide coated filament used in vacuum tube.

Choose an answer

It has a longer lime

Irt can with stand high

It emit electrons at low temperature

It reduces the effect of space charge

The Step up transformer

Choose an answer

Increase the input current

Increases the input voltage

Has more turns in the primary coil

Has less time in the secondary coil

In the experiment of force on a current carrying conductor in a uniform magnetic field the magnitude of force depends upon which factor.

Choose an answer

Force is inversely proportional to current

Force is directly proportional to current

Force is inversely proportional to voltage

Force is directly proportional to voltage

When light emitting diode is forward biased, it emits light of the colour

Choose an answer

Red

Yellow

Green

All of these

A vacuum diode conducts when plate

Choose an answer

Is negative w.r.t cathode

Is positive w.r.t. cathode

and cathode are at the same potential

Resistance is less

The work done is moving a very small charge in an electric field from one point to another is

Choose an answer

Independent of the path

Equal to the potential difference between the two points.

Measured in V m-1

Measured in J c-1

When a positive charge is allowed to move from positive to negative plate, then it will gain

Choose an answer

P.E.

K.E

Gravitational energy

Electrical P.E.

More Classes

Other Links

PPSC Physics Chapter 6 Electricity and Magnetism MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer