Download App

14. Semicondutor electronics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics14. Semicondutor electronics1 Mark
MCQ
A diode having potential difference $0.5\,V$ across its junction which does not depend on  current, is connected in series with resistance of $20\,\Omega $ across source. If $0.1\, A$ passes through resistance then what is the voltage of the source.....$V$
  • A
    $1.5$
  • B
    $2$
  • ✓
    $2.5$
  • D
    $5$
✓

Answer

Correct option: C.
$2.5$
c
$\mathrm{V}^{\prime}=\mathrm{V}+\mathrm{IR}$

$=0.5+0.1 \times 20$

$=2.5 \mathrm{\,V}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 14. Semicondutor electronics→14. Semicondutor electronics — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A change of $0.8 \,mA$ in the anode current of a triode occurs when the anode potential is changed by $10\, V$. If $\pi$ $ = 8$ for the triode, then what change in the grid voltage would be required to produce a change of $4 \,mA$ in the anode current.....$V$
→
The minimum distance between an object and its real image formed by a convex lens of focal length f is:
→
In the network shown below, the charge accumulated in the capacitor in steady state will be ........... $\mu C$
→
Vertical component of earth's magnetic field is zero:
→
A positively charged particle projected towards east is deflected towards north by a magnetic field. The field may be:
→
The plot given below is of the average power delivered to an $LRC$ circuit versus frequency. The quality factor of the circuit is
→
The induction coil works on the principle of.
→
Sodium and copper have work functions $2.3\;eV$ and $ 4.5\;eV$ respectively. Then the ratio of their threshold wavelengths is nearest to
→
The emission series of hydrogen atom is given by $\frac{1}{\lambda}=R\left(\frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}}\right)$ where, $R$ is the Rydberg constant. For a transition from $n_{2}$ to $n_{1}$, the relative change $\Delta \lambda / \lambda$ in the emission wavelength, if hydrogen is replaced by deuterium (assume that, the mass of proton and neutron are the same and approximately $2000$ times larger than that of electrons) is ........... $\%$
→
A watch shows time as $3:25$ when seen through a mirror, time appeared will be
→