Question

4. The heating effect of current is obtained by the
transformation of electrical energy into heat energy. Just
as mechanical energy used to overcome friction is
converted into heat, in the same way, electrical energy is
converted into heat energy when an electric current
flows through a resistance wire. Answer the following
questions - () The heat produced in a wire of resistance
when a current y flows through it in time 'z' is given by​

Answer 1

Answer:

Protect More Ancient Forests.

Use Eco forestry in All Secondary Forests.

Support Canada's National Forest Strategy.

Ban the Import of Illegally Logged Timber.

Use Less Paper and Wood.

Explanation:

OK

Answer 2

The amount of heat H produced in the wire is directly proportional to the square of current I passing through the wire, i.e., H ∝ I².

Resistance of the wire: The amount of heat H produced in the wire is directly proportional to the resistance R of the wire, i.e., H ∝ R.

Time: The amount of heat H produced in the wire is directly proportional to the time t for which current is passed in the wire, i.e., H ∝ t.

Hence the heating effect produced by an electric current, Y through a conductor of resistance, R for a time, z is given by

H = Y²Rz. This equation is called the Joule's equation of electrical heating.