If potential difference across 80 cm of a potentiometer wire is 2 V potential gradient across the wire will is :

A 10 m long uniform metallic wire having a resistance of 20 Omega is used as a potentiometer wire. This wire is connected in series with another resistance of 480 Omega and a battery of emf 5 V having negligible internal resistance. If an unknown emf e is balanced across 6 m of the potentiometer wire, calculate : the potential gradient across the potentiometer wire.

Potential difference across AB in the network shown is

Potential difference across AB in the network shown is

Potential difference across AB in the networ shown is

A 10 m along uniform metallic wire having a resistance of 20Omega is used as a potentiometer wire. This wire is connected in series with another resistance of 480 Omega and a battery of emf 5 V having negligible internal resistance . If an unknown emf e is balanced across 6 m of the potentiometer wire. Calculate : (i) The potential gradient across the potentiometer wire. (ii) the value of the unknown emf e.

Potential difference across the terminal of a non ideal battery is

In L-R circit, the A.C. source has voltage 220V . If potential difference across inductor is 176V , the potential difference across the resistor (in Volts) is Kxx33 . Find the value of K

Primary circuit of potentiometer is shown in figure determine : (A) current in peimary circuit (B) potential drop across potentiometer wire AB ( C) potential gradient (means potential drop per unit length of potentiometer wire) (D) maximum potential which we can measure above potentiometer

Potential difference across AB in the network shown in figure.

A potentiometer circuit is shown in Figure 3. AB is a uniform metallic wire having length of 2 m and resistance of 8Omega . The batteries E_(1) and E_(2) have emfs of 4V and 1.5 V and their internal resistance are 1Omega" and "2Omega respectively. When the jockey J does not touch the wire AB, calculate : (a) the current flowing through the potentiometer wire AB. (b) the potential gradient across the wire AB.