Current Electri...

What happens when negative terminal of cell is connected to other negative terminal of cell in a particular circuit?

Which of the following has negative temperature coefficient of resistance?

In the series combination of two or more than two resistances.

If the length of potentiometer wire is increased, then the length of the previously obtained balance point will

Combine three resistors $$5\Omega, 4.5\Omega$$ and $$3\Omega$$ in such a way that the total resistance of this combination is maximum:

A (75 - j40 ) $$\Omega $$ load is the connected to a coaxial line of $$z _ { 0 } = 75 \Omega$$ The load matching on the line can be accomplished by connecting

The value of $$I$$ in the figure shown below is

The Kirchhoff's first law ($$\sum$$i=0) and second law ($$\sum$$iR=$$\sum$$E) , where the symbols have their usual meanings, are respectively based on :

The resistance of a wire is 5 ohm at $$50^{\circ}$$C and 6 ohm at $$100^{\circ}$$C. The resistance of the wire at $$0^{\circ}$$C will be:

$$n$$ identical cells, each of internal resistance $$(r)$$ are first connected in parallel and then connected in series across a resistance $$( R)$$. If the current through $$R$$ is same in both the cases then: