MCQ
In the above question, potential difference across the 40Ω resistance will be
- ✓Zero
- B80 V
- C40 V
- D120 V
✓
Answer
Correct option: A.
Zero
(a) 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
The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refraction index $n$) is
→A wire carrying current I and other carrying 2I in the same direction produces a magnetic field B at the mid point. What will be the field when 2I wire is switched off
A screen is placed a distance $40\ cm$ away from an illuminated object. A converging lens is placed between the source and the screen and it is attempted to form the image of the source on the screen. If no position could be found, the focal length of the lens:
→What causes chromatic aberration?
A charged particle is moving in a circular orbit of radius $6\, cm$ with a uniform speed of $3 \times 10^6\, m/s$ under the action of a uniform magnetic field $2 \times 10^{-4}\, Wb/m^2$ which is at right angles to the plane of the orbit. The charge to mass ratio of the particle is
→Electrons with de-Broglie wavelength $\lambda$ fall on the target in an $\mathrm{X}$-ray tube. The cut-off wavelength of the emitted $\mathrm{X}$ rays is
→$1 a.m.u.$ is equivalent to
→The mechanism of the hydrogen bomb is based on
As shown in the schematic below, a rod of uniform cross-sectional area $A$ and length $l$ is carrying a constant current $i$ through it and voltage across the rod is measured using an ideal voltmeter. The rod is stretched by the application of a force $F$. Which of the following graphs would show the variation in the voltage across the rod as function of the strain $\varepsilon$ when the strain is small. Neglect Joule heating.
→Assertion : De-morgan's theorem $\overline{A+B}=\bar{A} \cdot \bar{B}$ may be explained by the following circuit
Reason : In the following circuit, for output inputs ABC are 101
→Reason : In the following circuit, for output inputs ABC are 101