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10th Chhattisgarh Board
IMPORTANT
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An electric heater has 3 kW, 220 V, stamped on it. Find the value of electric current.

Important Questions on Electric Current and Circuit

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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 7
An electric heater has 3 kW, 220 V, stamped on it. Find value of the resistance of the heater.
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 7
An electric heater has 3 kW, 220 V, stamped on it. Find the cost (in Rs) of electricity if unit cost is Rs. 1.50/kW h and heater is used for 10 hours.
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 8
Why are domestic circuits not arranged in a series combination?
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 8
Why is only tungsten metal used to make filaments of bulbs? 
EASY
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 9
If a current of 0.5 A flows for 20 minutes in a filament of a bulb, then what would be the quantity of electric charge (in coulombs) flowing in the circuit.
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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 10
In a house, 4 electric bulbs of 40 watts burn for 5 hours, 2 bulbs of 60 watts for 6 hours and 3 fans of 80 watts run for 6 hours, daily. What would be the cost (in Rs) of electricity, for one month of that home, if the rate is 50 paise per unit?
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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 11
What would be the effect on the circuit if one bulb out of three bulbs arranged in a series combination becomes fused?
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10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 6 - Electric Current and Circuit>Exercise>Q 11
What would be the effect if one bulb out of three arranged in parallel combination malfunctions?