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WorksheetsCurrent electricity
Total questions: 15
Worksheet time: 8mins
Current is expressd in Ampere.....
I
A
V
R
Unit of charge in SI unit is.....
Coulomb C
Resistivity ρ
Ampere A
Potential difference V
Symbol for the potential differences is .....
I
V
R
C
This is known as ohm's law.....
V = I + R
V = I ÷ R
V = I - R
V = I × R
The unit of resistivity in SI unit is......
Ohm meter
Ametre
Voltmetre
Metre
Those substances which have very low resistance are called as.....
Conductors
Insulators
Ametre
Voltmetre
Those substances which have extremely high resistance are called as.....
Ametre
Insulator
Conductors
Current
Arrangement is used to increase the resistance in a circuit.
Resistors connected in parallel
Resistors connected in series
Resistors connected in alternate
Resistors connected in combination.
Arrangement used to reduce the resistance in a circuit
Resistors connected in alternate
Resistors connected in series
Resistors connected in parallel
Resistors connected in combination
The symbol used to express the current is......
V
I
R
C
Small value of current 1mA = ....
10³ A
10⁻⁶A
10⁻³A
10⁶A
Small value of current 1μA = ...
10⁻⁶A
10⁻³A
10⁶A
10³A
Small value of potential difference is expressed in 1mV = .........
10³V
10⁻⁶V
10⁻³V
10⁶V
Small value of potential difference is expressed in 1μV =.....
10⁻³
10³
10⁻⁶
10⁶
This is the formula for the effective resistance connected in .........
Rs = R1+ R2+ R3+ R4..... Rn.
Resisteres connected in series.
Resisteres connected in parallel.
