Current Electri...

A metal wire of resistance R is cut into three equal pieces which are then connected side by side to form a new wire, the length of which is equal to one third of the original length. The resistance of this new wire is:-

In the given circuit (as shown in the figure), choose the wrong statement.

The diagram shows three capacitor with their capacitances with breakdown voltages. what should be the maximum value of external emf of source such that no capacitor breaks down :-  

Identify which of the following diagram represent the internal construction of the coils wound in a resistance box or PO box?

In the figure the magnet is moved along the axis of coil from one position to another position in $${10^{ - 3}}$$ sec.Now magnet is at rest for 2 sec, in its new position.The duration of induced emf in the coil is:

Calculate the value of current I in given circuit .

Dimension of electromotive force (e.m.f) is -

EMF of a battery, when compared to its potential difference, is

Kirchhoff's equation is

Diagram shows three capacitors with capacitance and breakdown voltage mentioned. What should be maximum value of the external emf of source such that no capacitor breaks down?