Electricity Tes...

Find out the total power supplied by the 60-V source in the circuit shown in figure.

Two resistors of resistance $$4\, \Omega$$ and $$6\, \Omega$$ are connected in parallel to a cell to draw $$0.5 A$$ current from the cell. What  is the current through resistor $$6\, \Omega$$?

The figure shows two bulbs with a resistance of $$10\ \Omega$$ with switches and a fuse connected to mains through a socket. How are the two bulbs joined and what is net resistance?

A wire of uniform thickness with a resistance of $$27\, \Omega$$ is cut into three equal pieces and they are joined in parallel. The equivalent resistance of the parallel combination will be :

 What is the current through an electrical appliance of rating 5 kW, 200 V and can you use a fuse which is rated 8 A ? 

A particular resistance wire has a resistance of 3.0 ohm per metre. The total resistance of three lengths of this wire each 1.5 m long, joined in parallel will be :

What we used to protect the electric circuits from over loading and short circuit ?

Three resistors of $$6.0 \Omega, \,  2.0 \Omega$$ and $$4.0 \Omega$$ are joined to an ammeter A and a cell of e.m.f. 6.0 V as shown in figure. The effective resistance of the circuit is :

The rating of a fuse connected in the general household lighting circuit is:

Two resistors of resistance $$4\, \Omega$$ and $$6\, \Omega$$ are connected in parallel to a cell to draw 0.5 A current from the cell. What is current through resistor $$4\, \Omega$$ ?