If the resistance of a wire is doubled and same current flows through it for same time, heat produced will:
Become double
Heat produced in a wire is given by \(H = I^2Rt\).
Since the current and time remain the same, heat produced is directly proportional to resistance. Doubling the resistance doubles the heat produced.
Hence, the correct answer is Become double (D).
Similar Questions
Which of the following symbols represents a rheostat?
Two resistors of 2 Ω and X Ω are connected in series to a 10 V battery. If the current flowing through the resistors is 2 A, then what will be the value of X (in Ohm)?
A manufacturer wants to design heating elements that generate more heat when a current passes through. Which material property should be maximized for this purpose?
A circuit consists of three resistors of 4 ohms, 6 ohms, and 12 ohms connected in parallel. Which statement is correct about the total resistance?
A copper wire and an iron wire have the same length and thickness. Which wire will have lower resistance and why, when both are kept at the same temperature?
If a 9V battery is connected across three resistors of 3 ohms, 2 ohms, and 1 ohm in series, what is the current flowing through the circuit?
An electric kettle has a resistance of 10 ohms and is connected to a 220 V supply. For 5 minutes of operation, how much charge flows through it?
In an electric circuit, what produces the potential difference needed for charge flow?
A student wants to compare the resistivity of two different materials using wires of identical length and cross-sectional area. Which measurement must be made for both wires to determine their resistivity?
A heater is rated at 220 V and 1000 W. If it is connected to a 110 V supply, what will be the power consumed by the heater?
Important Questions from Current Electricity
Which of the following is a bad conductor of electricity?
In general, in an alternating current circuit
The laws of electromagnetic induction have been used in the construction of a
A 220 volt and 100 watt bulb is connected to a 110 volt source. The power consumption by the bulb is
In the series combination of resistance in current electricity, which of the following is correct?
