Amount of deflection of the galvanometer depends on _____.
Important Questions on Current Electricity
When the value of in the balanced Wheatstone bridge, shown in the figure, is increased from to , the value of has to be increased by in order to maintain the balance. What are the initial values of
In the circuit given below, it is observed that the current is independent of the value of resistance . Then the resistance values satisfy
A Wheatstone bridge is used to determine the value of unknown resistance by adjusting the variable resistance as shown in the figure. For the most precise measurement of , the resistances and
In the following circuit, the effective resistance between the points and is
he equivalent resistance of the circuit between and is
In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the figure below. The resistance has temperature coefficient . If the temperature of is increased by the voltage developed between and will be . Write the value of to the nearest integer.
In the given circuit, it is observed that the current is independent of the value of resistance . Then, the resistance value must satisfy
The current in the given circuit will be
A battery of is connected to the circuit as shown below. The current drawn from the battery is
In the circuit shown , the reading of the galvanometer is same with switch open or closed, then
A non-zero current passes through the galvanometer shown in the circuit when the key is closed and its value does not change when the key is opened. Then, which of the following statement(s) is/are true?
Current measured by the ammeter in the reported circuit when no current flows through resistance, will be _____ .
The value of current as shown in the given circuit diagram is
The value of current flowing from to in the circuit diagram is :