Class 12PhysicsElectromagnetic wavesMaxwell's equations , Concept of displacement current and Hertz experiment
Medium$A$ charged particle oscillates about its mean equilibrium position with a frequency of $8 \times 10^9 \text{ Hz}$. What is the frequency of the electromagnetic waves produced by the oscillator?
- A$4 \times 10^9 \text{ Hz}$
- B$1.6 \times 10^{10} \text{ Hz}$
- C$8 \times 10^9 \text{ Hz}$
- D$2 \times 10^9 \text{ Hz}$
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The source of an electromagnetic wave can be a charge
An insulator plate is passed between the plates of a capacitor. Then the displacement current
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View SolutionMatch the following List-$I$ with List-$II$.
$A$. $\oint E \cdot dA$ $(i)$ $0$ $B$. $\oint B \cdot dA$ $(ii)$ $-\frac{d\phi_B}{dt}$ $C$. $\oint E \cdot dl$ $(iii)$ $\frac{Q}{\varepsilon_0}$ $D$. $\oint B \cdot dl$ $(iv)$ $\mu_0(i_c + i_d)$
| $A$. $\oint E \cdot dA$ | $(i)$ $0$ |
| $B$. $\oint B \cdot dA$ | $(ii)$ $-\frac{d\phi_B}{dt}$ |
| $C$. $\oint E \cdot dl$ | $(iii)$ $\frac{Q}{\varepsilon_0}$ |
| $D$. $\oint B \cdot dl$ | $(iv)$ $\mu_0(i_c + i_d)$ |
Which equations are called Maxwell's equations?
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View SolutionYou are given a $2 \,\mu F$ parallel plate capacitor. How would you establish an instantaneous displacement current of $1 \, mA$ in the space between its plates?
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