This document describes how to make a simple electric heater by wrapping aluminum foil around a metal object and connecting it to batteries via wires and a switch. When the switch is turned on, electric current flows through the aluminum foil, causing it to heat up and transfer heat to the metal object and surrounding water, warming the water over time. The key phenomenon explained is that an electric current produces heat as it flows, known as the heating effect of electric current.

1. HEATING EFFECT OF AN
ELECTRIC CURRENT:
HEATER

2. HOW TO MAKE ?

3. Materials Needed :
1.Aluminium Foil
2.Any metal
3.Wires
4. 4 Batteries
5.Switch

4. Process :
Take the Aluminium Foil and
wrap it around the metal.
Connect an end of it to wire
and the wire to the switch ,
another end (Aluminium Foil)
to the positive terminal of the
battery.

5. Now connect the negative
terminal of the battery to
the switch using a wire.

6. Put the metal (wrapped
with Aluminium Foil) in
water . Now put the switch
in ON position. Wait for 5
minutes. Now put the
switch in OFF position. The
water will be warm

7. CIRCUIT DIAGRAM SWITCH IN OFF
POSITION

8. CIRCUIT DIAGRAM SWITCH IN ON
POSITION

9. HOW DOES IT WORKS ?

10. When switch is turned ON
current starts flowing .
The current when passes
through the Aluminum Foil
wire it heats it up. This
heat is transferred to
metal in which the
nichrome is coiled up.

11. When this process
repeatedly happens , water
starts absorbing the heat
from the metal and warm
up.

12. PHENOMENON
HEATING EFFECT OF ELECTRIC
CURRENT :
WHEN CURRENT FLOWS , IT
PRODUCES HEAT. THIS PROCESS OF
PRODUCTION OF HEAT BY FLOW OF ELECTRIC
CURRENT IS CALLED HEATING EFFECT OF
ELECTRIC CURRENT.