Electricity Quick check | Quizalize

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Electricity Quick check

Quiz by Nidhi Joshi Biyani

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Q 1/5
Score 0
An electric bulb rated for 500 W at 100V is used in a circuit so that the bulb delivers 500W is _____ ohms.
29

100
20
50
40

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5 questions

Show answers

Q1
An electric bulb rated for 500 W at 100V is used in a circuit so that the bulb delivers 500W is _____ ohms.
100
20
50
40
120s
Q2
A heater is designed to operate with a power of 1000W in a 100V line. It is connected in combination with a resistance of 10 ohms and a resistance R, to a 100V mains as shown in the figure. What will be the value of R so that the heater operates with a power of 62.5W?
2.5 ohms
10 ohms
25 ohms
5 ohms
300s
Q3
What will be total resistance of the given circuit?
5.66 ohms
8.66 ohms
33 ohms
22 ohms
120s
Q4
What will be the resistance of the circuit before and after the key is closed?
3R/2, 5R/2
4R/3, 2R/5
3R/2, 4R/3
4R/3, 5R/2
60s
Q5
Equivalent resistance of the given circuit is 1.5 ohms then r is________ ohms.
1.8
1.1
3.3
1.6
120s