Electricity Tes...

The power consumed by $$4$$V battery in the circuit as shown is?

An electrical conductor has a resistance of $$5.6k\Omega$$. A potential difference (p.d.) of $$9.0V$$ is applied
across its ends.
How many electrons pass a point in the conductor in one minute?

The current in a kettle is $$10\ A$$ and the kettle is protected by a $$13\ A$$ fuse. The owner of the kettle replaces the $$13\ A$$ fuse with a $$3\ A$$ fuse. What happens when the kettle is switched on?

If two identical heaters each rated as ($$1000$$W-$$220$$V) are connected in parallel to $$220$$V, then the total power consumed is?

The ratio $$R_{2}/R_{3}$$ is

The equivalent resistance between $$A$$ and $$B$$ ( of the circuit as shown ) is 

The equivalent resistance between $$A$$ and $$B$$ in the network in figure is 

The ratio $$R_{1}/R_{2}$$ is

A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if

In Fig. when an ideal voltmeter is connected across 4000$$\Omega $$ resistance, it reads 30 V. If the voltmeter is connected across 3000$$\Omega $$ resistance, it will read