Question

Which among the
following resistor
values connected to
a 40 V source, will
produce least heat in
the circuit?
112
1082
209
4022​

Answer 1

Answer:

112 ohm

Step-by-step explanation:

Because the heat produced in the circuit is directly proportional to resistance..

Lesser the resistance, lesser the heat produced

Answer 2

Answer:

112 Ω resistor will produce the least heat in the circuit

Step-by-step explanation:

• In context to the given question , we have to find the resistor from the following such that  it produce least heat in the circuit.
• we know that,

⇒ When current flows through the circuit, heat is generated in the circuit, this depends upon the duration of the current flowing, the amount of current and the resistance of the circuit. ( Higher resistance produce more heat).

from the given resistors,

• 112Ω is the resistance with the least value, hence it will produce least heat in the circuit.

∴ Option a is the correct answer.