# 10th Standard Science Chapter 12

10th Standard Science Chapter 12 Quiz. how much you know or you don’t  know,  test here. quiz  contains only 10 questions there no time limit.

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10th Standard Science Chapter 12

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Question 1.
Which of the following represents voltage?

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Question 2.
Unit of electric power may also be expressed as

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Q3. When a 4 Ω resistor is connected across the terminals of a 2 V battery, the number of coulombs passing through the resistor per second is:

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Q4. Keeping the potential difference constant, the resistance of the circuit is halved. The current will become:

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Q5. If in the given arrangement, the three resistors are to be replaced by a single resistor. What will be the value of this resistor? 6 / 10

Q6. The potential difference across the 3 Ω resistor in the following diagram is:

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Q6. The potential difference across the 3 Ω resistor in the following diagram is:

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Q7. V1, V2 and V3 are the potential differences across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5A. Which of the following shows the correct values of V1, V2 and V3 measured in volts?

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Q8. A wire of resistance R1 is cut into five equal pieces. These five pieces of wire are then connected in parallel. If the resultant resistance of this combination be R2, then the ratio R1/ R2 is:

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Q10. When a current 'I' flows through a resistance 'R' for time 't' the electrical energy spent is given by