Question

Suresh arranges the electric circuit shown below to measure the current flowing through and the potential difference of a bulb. Is the circuit correct? If not, then identify the mistake.

How is electric current related to the potential difference across the terminals of a conductor ? Draw a labelled circuit diagram to verify this relationship.

Three resistors R1, R2 and R3 are connected in parallel and the combination is connected to a battery, an ammeter, a voltmeter and a key. Draw suitable circuit diagram to show the arrangement of these circuit components along with the direction of current flowing.

Three resistors of 2 Ω, 3 Ω and 4 Ω are connected in series and the combination is connected to a battery of 9 V. An ammeter and a voltmeter are also connected in the circuit. Draw a circuit diagram to show the connection of the above said devices in a correct order. Determine (i) current shown by the ammeter and (ii) potential difference across the 3 Ω resistor.