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Physics-

General

Easy

Question

In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of $2 cross times 10 to the power of 10 end exponent$ Hz and amplitude 48 V/m The amplitude of oscillating magnetic field will be

$\frac{1}{16} \times 10^{- 8} W b / m^{2}$
$16 \times 10^{- 8} W b / m^{2}$
$12 \times 10^{- 7} W b / m^{2}$
$\frac{1}{12} \times 10^{- 7} W b / m^{2}$

The correct answer is: $16 cross times 10 to the power of negative 8 end exponent W b divided by m to the power of 2 end exponent$

Related Questions to study

The velocity of an electromagnetic wave in a medium is $2 cross times 10 to the power of 8 end exponent m S to the power of negative 1 end exponent$ If the relative permeability is 1 the relative permittivity of the medium is $open parentheses C subscript 0 end subscript equals 3 cross times 10 to the power of 8 end exponent m S to the power of negative 1 end exponent close parentheses$

The velocity of an electromagnetic wave in a medium is $2 cross times 10 to the power of 8 end exponent m S to the power of negative 1 end exponent$ If the relative permeability is 1 the relative permittivity of the medium is $open parentheses C subscript 0 end subscript equals 3 cross times 10 to the power of 8 end exponent m S to the power of negative 1 end exponent close parentheses$

physics-General

A condenser of capacity 50 p F is connected to an AC supply of 220 V 50 Hz. The rms value of magnetic field at a distance of 5cm from the axis is

A condenser of capacity 50 p F is connected to an AC supply of 220 V 50 Hz. The rms value of magnetic field at a distance of 5cm from the axis is

physics-General

$Lt subscript x not stretchy rightwards arrow 0 end subscript invisible function application x squared space cos invisible function application 2 over x$

$Lt subscript x not stretchy rightwards arrow 0 end subscript invisible function application x squared space cos invisible function application 2 over x$

parallel

$L subscript x not stretchy rightwards arrow d end subscript open parentheses fraction numerator 2 vertical line x vertical line over denominator x end fraction plus x plus 1 close parentheses$

$L subscript x not stretchy rightwards arrow d end subscript open parentheses fraction numerator 2 vertical line x vertical line over denominator x end fraction plus x plus 1 close parentheses$

$L subscript x not stretchy rightwards arrow 0 end subscript fraction numerator 1 minus cos invisible function application m x over denominator 1 minus cos invisible function application n x end fraction comma n not equal to 0$

$L subscript x not stretchy rightwards arrow 0 end subscript fraction numerator 1 minus cos invisible function application m x over denominator 1 minus cos invisible function application n x end fraction comma n not equal to 0$

$Lt subscript x not stretchy rightwards arrow 0 end subscript invisible function application fraction numerator 1 minus cos invisible function application 2 m x over denominator sin squared invisible function application n x end fraction left parenthesis m comma n element of Z right parenthesis$

$Lt subscript x not stretchy rightwards arrow 0 end subscript invisible function application fraction numerator 1 minus cos invisible function application 2 m x over denominator sin squared invisible function application n x end fraction left parenthesis m comma n element of Z right parenthesis$

parallel

$L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator x tan invisible function application 2 x minus 2 x tan invisible function application x over denominator left parenthesis 1 minus cos invisible function application 2 x right parenthesis squared end fraction$

$L t subscript x not stretchy rightwards arrow 0 end subscript fraction numerator x tan invisible function application 2 x minus 2 x tan invisible function application x over denominator left parenthesis 1 minus cos invisible function application 2 x right parenthesis squared end fraction$

$L t subscript x not stretchy rightwards arrow 1 end subscript fraction numerator log subscript e invisible function application open parentheses 1 plus x cubed close parentheses over denominator sin cubed invisible function application x end fraction$

$L t subscript x not stretchy rightwards arrow 1 end subscript fraction numerator log subscript e invisible function application open parentheses 1 plus x cubed close parentheses over denominator sin cubed invisible function application x end fraction$

$Lt subscript x not stretchy rightwards arrow 1 end subscript invisible function application fraction numerator cube root of x minus 1 over denominator x minus 1 end fraction$

$Lt subscript x not stretchy rightwards arrow 1 end subscript invisible function application fraction numerator cube root of x minus 1 over denominator x minus 1 end fraction$

parallel

$L subscript x not stretchy rightwards arrow 0 end subscript fraction numerator 3 to the power of t minus 1 over denominator square root of 1 plus x end root minus 1 end fraction$

$L subscript x not stretchy rightwards arrow 0 end subscript fraction numerator 3 to the power of t minus 1 over denominator square root of 1 plus x end root minus 1 end fraction$

$Lt subscript x not stretchy rightwards arrow 2 end subscript invisible function application fraction numerator open parentheses 2 x squared minus 7 x minus 4 close parentheses over denominator left parenthesis 2 x minus 1 right parenthesis left parenthesis square root of x minus 2 right parenthesis end fraction$

$Lt subscript x not stretchy rightwards arrow 2 end subscript invisible function application fraction numerator open parentheses 2 x squared minus 7 x minus 4 close parentheses over denominator left parenthesis 2 x minus 1 right parenthesis left parenthesis square root of x minus 2 right parenthesis end fraction$

$Lt subscript x not stretchy rightwards arrow 0 end subscript fraction numerator cos a x minus cos b x over denominator x squared end fraction$

$Lt subscript x not stretchy rightwards arrow 0 end subscript fraction numerator cos a x minus cos b x over denominator x squared end fraction$

parallel

The diameter of the condenser plate is 4cm. It is charged by an external current of 0.2A. The maximum magnetic field induced in the ga

The diameter of the condenser plate is 4cm. It is charged by an external current of 0.2A. The maximum magnetic field induced in the ga

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The capacity of a parallel plate condenser is 50 pF A magnetic field of $4 cross times 10 to the power of negative 7 end exponent$ T is produced at a distance of 10cm from the axis of the gap. The charging current is

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physics-General

An AC source having a frequency of 50 Hz and voltage supply of 300v is applied directly to the condenser of capacity 100mF The peak and rms values of displacement current are

An AC source having a frequency of 50 Hz and voltage supply of 300v is applied directly to the condenser of capacity 100mF The peak and rms values of displacement current are

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parallel

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