Question
The reactance of a circuit is zero. It is possible that the circuit contains.
✓
Answer
- neither an inductor nor a capacitor
Answer: A an inductor and a capacitor, B neither an inductor nor a capacitor
Reactance in electrical and electronic systems is the opposition of a circuit element to a change of electric current or voltage.Ideally a resistor has zero reactance.
Therefore in a circuit, reactance can be zero either if there are no inductors and capacitors in the circuit, or the individual reactance of inductors and capacitors cancel each other, making net reactance zero.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Use of eddy currents is done in the following except(a) Moving coil galvanometer(b) Electric brakes(c) Induction motor(d) Dynamo
The function of rectifier is :
The photoelectric effect proves that light consists of :
Figure shows a small wheel fixed coaxially on a bigger one of double the radius. The system rotates about the common axis. The strings supporting A and B do not slip on the wheels. If x and y be the distance travelled by A and B in the same time interval, then:
- x = 2y
- x = y
- y = 2x
- None of these.
Which type of a physical quantity is electric current?
Frequency and potential difference of AC sent to homes in India is:
$1\ g$ of hydrogen is converted into $0.993\ g$ of helium in a thermonuclear reaction. The energy released is
→If a proton and electron have same de Broglie wavelength, then:
A rectangular coil 20 cm × 20 cm has 100 turns and carries a current of 1 A. It is placed in a uniform magnetic field B = 0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is(a) Zero (b) 200 N-m(c) 2 N-m (d) 10 N-m
Which of the following has its permeability less than that of free space?