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MCAT_2021_XII_CURRENT ELECTERCITY

Create an image of a scientist conducting experiments with electrical circuits, surrounded by wires, resistors, and instruments in a laboratory setting.

MCAT Current Electricity Quiz

Test your knowledge on the principles of current electricity with our engaging quiz designed for aspiring scientists and enthusiasts alike. This quiz consists of 10 multiple-choice questions covering various topics including thermocouples, resistivity, and power output.

Key Features:

10 challenging questions
Instant feedback on your answers
Great for students and educators

10 Questions2 MinutesCreated by ChargingWave455

The device which converts heat energy into electrical energy is called

BATTERY

CELL

THERMOCOUPLE

None

The effect is calle________it is used in galvanometers, motors, fans, drill machines

Heating effect

Magnetic effect

Chemical effect

None

If resistance of conductor decrease with increase of temperature then alpha will be ______

Positvie

Negative

Neutral

None

Thermistor are temperature sensors so they convert change in ________ into electrical voltage.

Temperature

Current

Numeric values

None

An electrical circuit that is used to measure the value of unknown resistance is called_____

Voltmeter

Wheatstone

Printer

Ammeter

The filament resistance lower or higher in a 500 W, 220 V bulb than in a 100 W, 220 V bulb?

1OOW BULB has higher

5OOW BULB has higher

5OW BULB has higher

None

A charge of 90C passes through a wire in 1 hour and 15 minutes. What is the current in the?

10 ampere

20 ampere

30 ampere

None

If fourth band on a carbon
resistor is of silver color then
its tolerance is

10% tolerance

5% tolerance

50% tolerance

1% tolerance

A wire of uniform area of cross
section A and length L cut into
two equal parts the resistivity
of each part is

Double

Half

Same

None

The power output of a lamp is
6W. How much energy does the lamp gives out in 2
minutes

100j

500j

620j

720j

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