Welcome to your DC Circuits MCQ practice assessment.
The curve representing ohm's law is
With rise in temperature the resistance of pure metals
In a circuit a 33 ohms resistor carries a current of 2 A. The voltage across the resistor is
A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is
The substances which have a large number of free electrons and offer a low resistance are called
Specific resistance of a material is
A DC circuit has ___________ as a load
An instrument which detects electric current is known as
The property of a conductor due to which it passes current is called
With rise in temperature the resistance of semi-conductors
A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is______ ohms.
Which of the following material has nearly zero temperature coefficient of resistance
Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 0.25 Q. If the same four wires are connected is series the effective resistance will be ___ ohms.
According to Kirchoff’s voltage law,
The S.I. unit of power is
One coulomb of charge is equal to the charge of
Two resistors are said to be connected in series when
The resistance of wire varies inversely as
If a current of 5A flows through a resistor of 12 ohm then the power developed and the energy dissipated in 2 minutes are
You have to replace 1500 ohms resistor in radio. You have no 1500 ohms resistor but have several 1000 ohms ones which you would connect