Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
PUNJAB BOARD PREVIOUS YEAR PAPERS-Electric Current, Resistance and E.M.F. -Exercise
- Why the fuse wire should have high resistance and low melting point?
Text Solution
|
- A fuse wire is a wire of Low resistance and high melting point.
Text Solution
|
- Why the fuse wire should have high resistance and low melting point?
Text Solution
|
- One kilowatt hour is equal to
Text Solution
|
- Which out of the following is used to make standard resistance
Text Solution
|
- The rings on carbon resistance have colours in the sequence Red,Yellow...
Text Solution
|
- With increase in temperature, resistance of metals :
Text Solution
|
- For alloys the value of temperature coefficient of resistance is very ...
Text Solution
|
- For metallic conductors the value of temperature coefficient of resist...
Text Solution
|
- S.l. unit of electromotive force is volt. (True/False)
Text Solution
|
- On what factor does the internal resistance of a cell depends?
Text Solution
|
- With the help of a diagram derive the formula for the equivalent resis...
Text Solution
|
- What is the internal resistance of a cell ? How it can be measured ?
Text Solution
|
- What is Non-ohmic device ? Give one example.
Text Solution
|
- What is a drift velocity ? Establish the relations between the drift v...
Text Solution
|
- If drift velocity of electron as well as charge on electron is very sm...
Text Solution
|
- Define internal resistance of a cell and find an expression for it.
Text Solution
|
- Establish the relation between drift velocity of electrons and electri...
Text Solution
|
- The number density of free electrons in a metal piece is a very large ...
Text Solution
|
- Standard resistance coils are made up of which material why ?
Text Solution
|