Electricity Tes...

A wire of resistance R is cut into ten equal parts which are then joined in parallel. The new resistance is:

Two wires of resistance $$R_1$$ and $$R_2$$ are joined in parallel. The equivalent resistance of the combination is:

Three resistors of $$4.0\ \Omega$$, $$6.0\ \Omega$$ and $$10.0\ \Omega$$ are connected in series. What is their equivalent resistance?

Two students set up their circuits for finding the equivalent resistance of two resisto connected in series in two different ways as shown.
The circuit (s) likely to be labelled as incorrect :

A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R', then the ratio R/R' is:

Three resistances of 2, 3 and 5 $$\Omega$$ are connected in parallel to a lay battery 10V with negligible internal resistance. The potential difference across the $$3 \Omega$$ resistance will be

When a wire of uniform cross-section a, length l and resistance R is bent into a complete circle, resistance between any two of diametrically opposite points will be:

Combined resistance is the sum of separate resistances provided that the various conductors are connected in______ .

Kilowatt-hour is the unit of :

When a fuse is rated 8A, it means :