Question # 1

A resistance frequency the impedance of RLC parallel circuit is.

Choose an answer

Zero

Infinite

Maximum

Minimum

In AC system we generate sine wave form because:

Choose an answer

It san be easily draw

It produces least disturbance in electrical circuits

It is nature standard

Other waves cannot be produced easily

In Pakistan the frequency of A.C. supply is.

Choose an answer

50 Hz

60 Hz

45 Hz

70 Hz

The peak value of A.C source is 20 A, then its rms value will be.

Choose an answer

14.1 A

10 A

20 A

28.2 A

The unit of impedance is

Choose an answer

Farad

Henry

Tesla

Ohm

X₁is low for low frequency Fy but Xc is.

Choose an answer

Zero

Low

High

Same is H

An A.C. voltmeter reads 220 V, its peak value will be

Choose an answer

225 V

240 V

311.12 V

300 V

The mean value of A.C. in a cycle is.

Choose an answer

1

0

I2

Nil

When 10 V are applied to an A.C circuit, the current flowing in it is 100 mA. It impedance is.

Choose an answer

100 Ohm

10 Ohm

1000 Ohm

1 Ohm

Electron vibrating 94,000 times each second will produce radio waves of frequency.

Choose an answer

94 Hz

940 HZ

94 Hz

490 Hz

In A.C circuit through a capacitor which one is:

Choose an answer

Current leads voltage by 90^∘

Current lags behind voltage by 90^∘

Both will be in phase

None of above

The combined effect of resistance and reactance is knows as.

Choose an answer

Inductance

Conductance

Resistance

Impedance

The reactance of inductor depends upon

Choose an answer

L

All of the above

Resistance of choke is

Choose an answer

zero

Large

Very small

Infinite

The electromagnetic spectrum contains

Choose an answer

Radio waves

X-rays

Microwaves

All of these

100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.

Choose an answer

30.8 Ohm

31.8 Ohm

34.8 Ohm

40 Ohm

The circuit which compares the two voltages is.

Choose an answer

LDR

Sensor

Comparator

Logic gate

In chopke coil the resistance X_L an resistance R are:

Choose an answer

X_L=R

X_L<<R

X_L>>R

X_L=∞

More Classes

Other Links

Ics Part 2 Physics Chapter 5 Test Online 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