Current Electricity MCQs

Option A: 100 watt

Option B: 200 watt

Option C: 300 watt

Option D: 60 watt

Correct Answer: 300 watt ✔

Option A: high power

Option B: high voltage

Option C: high current

Option D: over heating

Correct Answer: over heating ✔

Option A: IRt

Option B: I2R

Option C: I2Rt

Option D: VIt

Correct Answer: I2R ✔

Option A: watt

Option B: horse power

Option C: kilo watt

Option D: kilowatt hour

Correct Answer: watt ✔

Option A: zero almost

Option B: infinite almost

Option C: no prediction at all

Option D: may increase or decrease

Correct Answer: zero almost ✔

Option A: hyperbola

Option B: ellipse

Option C: parabola

Option D: straight line

Correct Answer: straight line ✔

Option A: negative charges

Option B: positive charges

Option C: both negative and positive charges

Option D: neutral particles

Correct Answer: positive charges ✔

Option A: 12

Option B: 24

Option C: 5

Option D: 1100

Correct Answer: 12 ✔

Option A: increase with rise in temperature

Option B: decrease with rise in temperature

Option C: will remain same

Option D: depends upon altitude of experimentation

Correct Answer: increase with rise in temperature ✔

Option A: 40 W bulb

Option B: 60 W blub

Option C: 100 W blub

Option D: all will burn equally brightly

Correct Answer: 40 W bulb ✔

Option A: source of EMF

Option B: conductor

Option C: resistor

Option D: capacitor

Correct Answer: source of EMF ✔

Option A: iron

Option B: tungsten

Option C: silver

Option D: copper

Correct Answer: copper ✔

Option A: finite

Option B: infinite

Option C: zero

Option D: changes with every conductor

Correct Answer: zero ✔

Option A: 144000J

Option B: 144J

Option C: 1.44J

Option D: 14J

Correct Answer: 144000J ✔

Option A: one second

Option B: one day

Option C: one minute

Option D: one hour

Correct Answer: one hour ✔

Option A: more heat is produced in thick wire

Option B: more heat is produced in thin wire

Option C: no heat is produced in wire

Option D: less heat is produced in thick wire

Correct Answer: more heat is produced in thin wire ✔

Option A: remains the same

Option B: is doubled

Option C: is halved

Option D: becomes zero

Correct Answer: remains the same ✔

Option A: nature of conductor

Option B: dimension of conductor

Option C: physical state of the conductor

Option D: all of above

Correct Answer: all of above ✔

Option A: same current

Option B: same current and potential difference

Option C: different current but same potential difference

Option D: different current and potential differences

Correct Answer: different current but same potential difference ✔

Option A: to increase current

Option B: to decrease current

Option C: to control current

Option D: just to give a good look to circuit

Correct Answer: to decrease current ✔

Option A: 3600C

Option B: 7200C

Option C: 1C

Option D: 2C

Correct Answer: 3600C ✔

Option A: constantan

Option B: nichrome

Option C: copper

Option D: tungsten

Correct Answer: tungsten ✔

Option A: zero

Option B: 2V

Option C: 12V

Option D: 36V

Correct Answer: zero ✔

Option A: will depend on its length

Option B: will depend on its radius

Option C: will depend on the type of material of the wire

Option D: will depend on none of the above

Correct Answer: will depend on the type of material of the wire ✔

Option A: 100W

Option B: 200W

Option C: 60W

Option D: all

Correct Answer: 200W ✔

Option A: complex network

Option B: wheat stone bridge

Option C: potential divider

Option D: all of above

Correct Answer: potential divider ✔

Option A: resistance

Option B: inductance

Option C: conductivity

Option D: flexibility

Correct Answer: conductivity ✔

Option A: infinite

Option B: zero

Option C: finite

Option D: depends upon nature

Correct Answer: infinite ✔

Option A: 2KWh

Option B: 20KWh

Option C: 6KWh

Option D: 12KWh

Correct Answer: 2KWh ✔

Option A: heat energy into electrical energy

Option B: heat energy into light energy

Option C: heat energy into mechanical energy

Option D: mechanical energy into heat energy

Correct Answer: heat energy into electrical energy ✔

Option A: 40 W

Option B: 90W

Option C: 100W

Option D: 120W

Correct Answer: 90W ✔

Option A: Joule effect

Option B: Joule Thomsons effect

Option C: Comptons effect

Option D: Feed back effect

Correct Answer: Joule effect ✔

Option A: very good conductor

Option B: moderately good conductor

Option C: an insulator

Option D: no specific criterion available

Correct Answer: very good conductor ✔

Option A: free electrons

Option B: protons

Option C: neutrons

Option D: still under controversy

Correct Answer: free electrons ✔