State Ohm’s law? How can it be verified experimentally? Does it hold good under all conditions? Comment.
State Ohm’s law? How can it be verified experimentally? Does it hold good under all conditions? Comment.
Define Ohm’s law. Give details of experiment using a labelled circuit diagram. Support your answer giving relation between $V$ and $I$ and a graph depicting Ohm’s law. Ohm’s law does not hold under all conditions. Mention the conditions.
Similar Questions
An electric heater consumes $1.1 \,kW$ power when $220\, V$ voltage is applied to it. How much current will be flowing through it?
An electric heater consumes $1.1 \,kW$ power when $220\, V$ voltage is applied to it. How much current will be flowing through it?
The formula for an electric current is $.....$
The formula for an electric current is $.....$
How much work is done in moving a charge of $2$ coulomb from a point at $118$ volt to a point at $128$ volt ?
How much work is done in moving a charge of $2$ coulomb from a point at $118$ volt to a point at $128$ volt ?
If a $12\, V$ battery is connected to the arrangement of resistances given below, calculate
$(i)$ the total effective resistance of the arrangement and
$(ii)$ the total current flowing in the circuit.
If a $12\, V$ battery is connected to the arrangement of resistances given below, calculate
$(i)$ the total effective resistance of the arrangement and
$(ii)$ the total current flowing in the circuit.
$(a)$ For the circuit shown in the diagram, calculate
$(i)$ value of current through the $30\, \Omega$ resistor.
$(ii)$ total resistance of the circuit.
$(b)$ Give two advantages of connecting electrical devices in parallel with battery.
$(a)$ For the circuit shown in the diagram, calculate
$(i)$ value of current through the $30\, \Omega$ resistor.
$(ii)$ total resistance of the circuit.
$(b)$ Give two advantages of connecting electrical devices in parallel with battery.