How does an increase in the temperature affect the specific resistance of a semiconductor?

अति संक्षिप्त उत्तर

Its resistance generally decreases with temperature.

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अध्याय 4: Electricity and Magnetism - Frequently Asked Questions in Board Examination [पृष्ठ २८६]

अध्याय 4 Electricity and Magnetism
Frequently Asked Questions in Board Examination | Q 37. (b) | पृष्ठ २८६

Q 3. c. ii. | 1 mark

The unit of electrical resistance is:

(a) ampere
(b) volt
(c) coulomb
(d) ohm

In a conductor 6.25 × `10^16` electrons flow from its end A to B in 2 s. Find the current flowing through the conductor (e = 1.6 × `10^-19` C)

An electric bulb draws 1.2 A current at 6.0 V. Find the resistance of filament of bulb while glowing.

Show by a diagram how two resistors R₁ and R₂are joined in parallel. Obtain an expression for the total resistance of the combination.

What is meant by the drift speed of free electrons?

Draw a neat diagram for the verification of Ohm’s law by voltmeter-ammeter method. By another diagram show the relation between p.d. and current.

SI unit of resistance is:

Explain the equivalent resistance of a series resistor network.

Which of the following describes the V-I relation for an Ohmic conductor?