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9th ICSE
IMPORTANT
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Write the symbol and function of an open key.

Important Questions on Current Electricity

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9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 10

Write the symbol and function of connecting wires.

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9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 11
State Ohm's law.
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9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 11
What do you mean by resistance and write its SI unit?
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9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 11
Is resistance depends on the nature of materials?  
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9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 12
10 C charge passes through a cross-section of a conductor in 5 s. Find the current.
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9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 13
An electron beam has an area of cross-section 1 mm2. A total of 5 × 1016 electrons go through any perpendicular cross-section per second. Calculate the current. (Take charge on the electron is 1.6 × 10-19 C)
EASY
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 14
When a car is started, it takes 0.5 s and 25 C of charge passes through the coils of the starting motor. Calculate the current passing through the motor.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 15
What current flows in a resistance of 2 kΩ when a potential difference of 10 V is applied?