MEDIUM
9th ICSE
IMPORTANT
Earn 100

A resistor allows a current of 0.05 A to flow through it when there is a potential difference of 12.0 V between its ends. What is its resistance? 

Important Questions on Current Electricity

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>Check Point 2>Q 5
What happens to the resistance of a wire as its length decreases?
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 1
Define one ampere current. 
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 2
How does the flow of charge inside the wire take place?
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 3
Draw a simple electric circuit diagram comprising cell, electric bulb, rheostat, ammeter and a plug key.  
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 4
How does the resistance of a wire vary, if area is made half?  
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 4

How does the resistance of a wire vary, if length is made double?

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 5
Is there any change in current when a wire of different material of same length and area of cross-section is used? Explain it. 
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 10 - Current Electricity>CHAPTER EXERCISE>Q 6
Give the resistance of an ideal ammeter. Why does it so?