MCAT_2021_XII_CURRENT ELECTERCITY
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
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
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
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
6W. How much energy does the lamp gives out in 2
minutes
100j
500j
620j
720j
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