The resistance of a device is designed to change with temperature. What is the device?
Correct answer: D. A thermistor
- A. A light dependent resistor
- B. A potential divider
- C. A semiconductor diode
- D. A thermistor
Explanation
The resistance of a device thermistor is designed to change with temperature. The resistance of a device is designed to change with temperature. What is the device.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
Practise Current Electricity
1,052 free Current Electricity MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Current Electricity questions
Two wires A and B are made of the same material. Wire A has a length of I, and a diameter of R while wire B has a length of 2L and a diameter of R/2. If the two wires are stretched by the same force, the elongation in A divided by the elongation in B is:
A car battery has EMF of 12 volts and internal resistance 5 x 10^-2 ohm. If it draws 60 ampere current, then terminal voltage of the battery will be:
When we are measuring the internal resistance of a cell by potentiometer, the emf of the battery must be greater than the :
When will 1 C of charge pass a point in an electrical circuit?
A cell of internal resistance 2.0Ω and electromotive force (e.m.f) 1.5V is connected to a resistor of resistance 3.0Ω. What is the potential difference across the 3.0Ω resistor?
Two lamps are connected in series to a 250 V power supply. One lamp is rated 240 V, 60 W, and the other rated 10 V, 2.5 W. Which statement most accurately describes what happens?