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Define nuclear fission reaction.
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Give explanation about wave front.
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Explain Wave front.
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Explain Wave front.
Calculate the energy that can be obtained from $1\ kg$ of water through the fusion reaction
$^2H + ^2H \rightarrow ^3H + p.$
Assume that $1.5 \times 10^{-2}\%$ of natural water is heavy water $D_2O ($by number of molecules$)$ and all the deuterium is used for fusion.
→$^2H + ^2H \rightarrow ^3H + p.$
Assume that $1.5 \times 10^{-2}\%$ of natural water is heavy water $D_2O ($by number of molecules$)$ and all the deuterium is used for fusion.
How does Maxwell modify Ampere's circuital law? Explain.
Two parallel plate capacitors X and Y have the same area of plates and same separation between them. X has air between the plates while Y contains a dielectric medium of $\varepsilon_{\text{r}} = 4.$
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- Calculate capacitance of each capacitor if equivalent capacitance of the combination is $4\mu\text{f}.$
- Calculate the potential difference between the plates of X and Y.
- Estimate the ratio of electrostatic energy stored in X and Y.
The noise level in a class-room in absence of the teacher is 50dB when 50 students are present. Assuming that on the average each student outputs same sound energy per second, what will be the noise level if the number of students is increased to 100?
Explain how the groups of different energy levels can be made in -semi-conductors like Si and Ge crystals with band diagram
Explain the parallel connection of capacitors.
The reading of the $($ideal$)$ ammeter, in the circuit shown here, is equal too.
$i$. when key $K_1$ is closed but key $K_2$ is open.
$ii.$ $\frac{I}{n}$ when both keys $K _1$ and $K _2$ are closed.
Find the expression of the resistance of $X$ in terms of the resistances of $R$ and $S$.
→$i$. when key $K_1$ is closed but key $K_2$ is open.
$ii.$ $\frac{I}{n}$ when both keys $K _1$ and $K _2$ are closed.
Find the expression of the resistance of $X$ in terms of the resistances of $R$ and $S$.
If each diode in Fig. has a forward bias resistance of $25\Omega$ and infinite resistance in reverse bias, what will be the values of the current $I_1, I_2, I_3$ and $I_4$?
→(i) Define rectification.
(ii) Draw circuit diagram of a full-wave rectifier.
(iii) Semi-conductor related to given energy band diagram is:
n-type semi-conductor, p-type semi-conductor or intrinsic semiconductor.
(ii) Draw circuit diagram of a full-wave rectifier.
(iii) Semi-conductor related to given energy band diagram is:
n-type semi-conductor, p-type semi-conductor or intrinsic semiconductor.