If the magnetic field of a plane electromagnetic wave is given by \(B = 100 \times {10^{ - 6}}{\rm{sin}}\left[ {2\pi \times 2 \times {{10}^{15}}\left( {t - \frac{x}{c}} \right)} \right]\), Then the maximum electric field associates with it is (Take, the speed of light = 3 × 108 m/s)

If the magnetic field of a plane electromagnetic wave is given by \(B

1.	If the magnetic field of a plane electromagnetic wave is given by \(B = 100 \times {10^{ - 6}}{\rm{sin}}\left[ {2\pi \times 2 \times {{10}^{15}}\left( {t - \frac{x}{c}} \right)} \right]\), Then the maximum electric field associates with it is (Take, the speed of light = 3 × 108 m/s)
A.	6 × 104 N/C
B.	4 × 104 N/C
C.	3 × 104 N/C
D.	4.5 × 104 N/C
Answer» D. 4.5 × 104 N/C

Discussion

No Comment Found

Related MCQs

In an AC circuit, resonance occurs when
An alternating voltage v(t) = 220 sin 100πt volt is applied to a purely resistive load of 50 Ω. The time taken for the current to rise from half of the peak value to the peak value is:
A transformer consisting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kW. If the current in the secondary coil is 10 A, then the input voltage and current in the primary coil are:
A light bulb and an open coil induction are connected in series to an ac source as shown in figure. Now an iron rod is inserted into the interior of the inductor. The glow of the light bulb
In an AC circuit V = 100 sin (100t) volts and\(I = 100\sin \left( {100t + \frac{\pi }{3}} \right)mA\). The power dissipated in the circuit is
In the figure shown below, the charge on the left plate of the 10 μF capacitor is -30 μC. The charge on the right plate of the 6μF capacitor is
A circuit connected to an ac source of emf e = e0 sin (100t) with t in seconds, gives a phase difference of \(\frac{\pi }{4}\) between the emf e and current i. Which of the following circuits will exhibit this?
In a step-up transformer, the value of current in the secondary coil in comparison to primary coil is
A mixture of 2 moles of helium gas (atomic mass = 4 u), and 1 mole of argon gas (atomic mass = 40 u) is kept at 300 K in a container. The ratio of their ‘rms’ speeds \(\left[ {\frac{{{V_{{\rm{rms}}}}\left( {{\rm{helium}}} \right)}}{{{{\rm{V}}_{{\rm{rms}}}}\left( {{\rm{argon}}} \right)}}} \right],\) is close to:
For a series RLC circuit driven by voltage v = vmsinωt, the current is given by i = im sin(ωt + φ) and the power factor = __________

If the magnetic field of a plane electromagnetic wave is given by \(B = 100 \times {10^{ - 6}}{\rm{sin}}\left[ {2\pi \times 2 \times {{10}^{15}}\left( {t - \frac{x}{c}} \right)} \right]\), Then the maximum electric field associates with it is (Take, the speed of light = 3 × 108 m/s)

Discussion

No Comment Found

Related MCQs

Reply to Comment