Question

The end error of a meter bridge can be generated due to which of the following causes/(s)

• A. Generation of heat due to the flow of current in the wire may change the length of the wire
• B. Due to the change of the weather, the length of the meter bridge wire may change its length.
• C. The meter bridge wire is mounted over the wooden pltary some metal screw or some metal
• D. The thickness of the wire may be non uniform.

Answer 1

The correct option is C The meter bridge wire is mounted over the wooden pltary some metal screw or some metal

Error in the values due to the copper wire coiled in the connection at the circuit under metallic strips which increases the resistance and hence giving a slight error to the reading.

The meter bridge wire is mounted over the wooden paltry some metal screw or some metal.

$\therefore$ Option $C$ is correct.