Answer :
Heat energy is given as H = [tex]I^{2}[/tex]Rt.
12 = [tex]0.02^{2}[/tex]×R×60
R= 500 ohms.
voltage across the resistor is
V=IR
V= 0.02^{2} ×500
V= 0.2v
What is a resistor ?
A resistor is an electrical component with two terminals that implements electrical resistance as a circuit element. Resistors are employed in electronic circuits for a variety of purposes, including lowering current flow, adjusting signal levels, dividing voltages, biasing active devices, and terminating transmission lines.
An electrical component known as a resistor controls or restricts the passage of electrical current in an electronic circuit. Additionally, resistors can be used to supply a specified voltage to an active device like a transistor.
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