MCQ
$10$ wires $($same length, same area, same material$)$ are connected in parallel and each has $1\Omega$ resistance, then the equivalent resistance will be
- A$10 \Omega $
- B$1\Omega$
- ✓$ 0.1\Omega$
- D$0.001\Omega$
✓
Answer
Correct option: C.
$ 0.1\Omega$
$0.1\Omega$
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
The radius of a wavefront as the waves propagate:
In series L - C - R resonant circuit, to increase the resonant frequency:
Figure represents two simple harmonic motions. The parameter which has different values in the two motions is:
- Amplitude.
- Frequency.
- Phase.
- Maximum velocity.
The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction.
- The photocurrent will increase.
- The kinetic energy of the electrons will increase.
- The stopping potential will decrease.
- The threshold wavelength will increase.
The surface that we choose for application of Gauss’s law is called as:
A car is moving with at a constant speed of $60\ kmh^{-1}$ on a straight road. Looking at the rear view mirror, the driver finds that the car following him is at a distance of $100m$ and is approaching with a speed of $5\ kmh^{-1}.$ In order to keep track of the car in the rear, the driver begins to glance alternatively at the rear and side mirror of his car after every $2s$ till the other car overtakes. If the two cars were maintaining their speeds, which of the following statement $(s)$ is/are correct?
→Consider telecommunication through optical fibres. Which of the following statements is not true(a) Optical fibres may have homogeneous core with a suitable cladding(b) Optical fibres can be of graded refractive index(c) Optical fibres are subject to electromagnetic interference from outside(d) Optical fibres have extremely low transmission loss
A charge is being induced to a sphere with the help of another charged sphere. The extent of induction increase if ____________?
A potentiometer having the potential gradient of 2 mV/cm is used to measure the difference of potential across a resistance of 10 ohm. If a length of 50 cm of the potentiometer wire is required to get the null point, the current passing through the 10 ohm resistor is (in mA)(a) 1(b) 2(c) 5(d) 10
A moving charge produces:
- Electric field only.
- Magnetic field only.
- Both of them.
- None of them.