Physics-
General
Easy
Question
The amplitude of magnetic field at a region carried by an electromagnetic wave is 0.1mT The intensity of wave is
The correct answer is: ![1.2 W m to the power of negative 2 end exponent](data:image/png;base64,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)
Related Questions to study
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In an electromagnetic wave in vacuum The electrical and magnetic fields are 40pV/m and
The Poynting vector
In an electromagnetic wave in vacuum The electrical and magnetic fields are 40pV/m and
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Electromagnetic radiation with energy flux
is incident on a totally absorbing surface normally for 1 hour. If the surface has an area of 0.05m2 , then the average force due to the radiation pressure, on it is;
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Light with energy flux
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Light with energy flux
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In an apparatus, the electric field was found to oscillate with amplitude of 18 V/m. The amplitude of the oscillating magnetic field will be
In an apparatus, the electric field was found to oscillate with amplitude of 18 V/m. The amplitude of the oscillating magnetic field will be
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In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of
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In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of
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The velocity of an electromagnetic wave in a medium is
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](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJQAAAAVCAYAAACg0MepAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAQ3ZOC+gAAA9tJREFUeNrtWl9kW1Ecvq6ImCpRFX2oMjM1M2OqaqbKVFXMlJmomhl9nD6MqZmavU1NVYWaqsrDiKiJmjEVUTNjZg8zFab2UFMlpiquKNnv8N05Ozn3X3LPvWl3Pz7ac/+de853fr/v/G40rRlZ4rQWQQXOEzeJNWKduEO80eF9vkh8SvwqtM8QV5wuzuLECGrwjZgh6iD7+7DD+5wjzhIbkmMz0IwUaWI+mnOlOMSKN9EPkZ0GNCzaC9BOE1hIG4zmXCnYwO8RrxMvEYtIg6dZUIOSdKgNEcsuPcAL3ID5gJ/E58RkgC82RnyL5xvECnGJ2BOCj+DRjfD/CVxFG49e4kfiBrLBMrHL577GiM+I+xgf1pcJiTis6FVQGrQzxDewwZp36Ogj4hZMpM6F7DnieoCCKhGniHGu7SrxXUg+wsQ28ZYQjbaFc5ghHxdWt982g0W925ijBPG+T8+we3emnQXxRSdtLnhMfNXhIfkoxLB/B9FGxBKMt4kTyTmGz9H7dcDvrkE7m3wDy+spm3D/A6G0k7fjuzbHn4Bej3kxpuMWE1wQfOow9/8ESgc8FrCAUxDpAfEXt+CZvXhJrGIR8ZllWhIVgxBUHzT0FzUujYlYRFpT0UEnOiGFkF5xiLBWwvEiJrtBrQop2EQcgjAxAP9ngHlMBo88RPUZ0S2G6/ZwLvMrd9Hej/ukOAtSs7ivn/MkQsdzXanvO/FCB+44eLoVPC8gr2KyG6cTm2vqHp9RQZQRNzr7sB2y9j7BT7Lrj+GN9YDmpO5moHSfc7zfSMKAsp3MqAdRvW9BTK0Kysv4mSv9nMd2GTI49kHBTtJRUFYpL67Q7PqR8kx0QVRhCerAIuUlhJTnhGHsYttt58clh0ilEk3CtjPlx5KVYYc0DPKuZlFBVQTDpZhUpLyCpNajwagXPNw/Y1GC8drOg30eWVM89inRlNuVDdZQg3KDEZjGHrCENtW4Au8RlimfsiirrAtlAycso97VbjuPXAALu6lsYFfYHMAuZp4zhAl0kontJnfuG8HLsCJo0efOl1H3iSHUjmF13AuxbKBh8cyhX3Hcs+zx3awWtpv2LObI/HzWjd1iIYAF3VTYvCaph/Bgu7wN+Ck2qL/RUfEljwQvpivwYEykW9zWuxTACnTj75JYYAb8xGoLZriKxdpK+2VEIwMGmX3ieRCQ3diBhv7BF639j8MNH7bNEU4XpB+HNaSudtOTGKFiWjCfRCKEhyJshxSLLkyeHUQPNYr0FOFsYhaacdxptPqrzRF4GuYnemFKJ6NxP5Nw9RNgP5DGFp4ZxofRuP9f+APSGRnE+v400AAAASN0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bWZlbmNlZCBzZXBhcmF0b3JzPSJ8Ij48bXJvdz48bXN1Yj48bWk+QzwvbWk+PG1uPjA8L21uPjwvbXN1Yj48bW8+PTwvbW8+PG1uPjM8L21uPjxtbz4mI3hENzs8L21vPjxtc3VwPjxtbj4xMDwvbW4+PG1uPjg8L21uPjwvbXN1cD48bXN1cD48bXJvdz48bWk+bTwvbWk+PG1pPlM8L21pPjwvbXJvdz48bXJvdz48bW8+LTwvbW8+PG1uPjE8L21uPjwvbXJvdz48L21zdXA+PC9tcm93PjwvbWZlbmNlZD48L21hdGg+RPS26QAAAABJRU5ErkJggg==)
The velocity of an electromagnetic wave in a medium is
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](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJQAAAAVCAYAAACg0MepAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAQ3ZOC+gAAA9tJREFUeNrtWl9kW1Ecvq6ImCpRFX2oMjM1M2OqaqbKVFXMlJmomhl9nD6MqZmavU1NVYWaqsrDiKiJmjEVUTNjZg8zFab2UFMlpiquKNnv8N05Ozn3X3LPvWl3Pz7ac/+de853fr/v/G40rRlZ4rQWQQXOEzeJNWKduEO80eF9vkh8SvwqtM8QV5wuzuLECGrwjZgh6iD7+7DD+5wjzhIbkmMz0IwUaWI+mnOlOMSKN9EPkZ0GNCzaC9BOE1hIG4zmXCnYwO8RrxMvEYtIg6dZUIOSdKgNEcsuPcAL3ID5gJ/E58RkgC82RnyL5xvECnGJ2BOCj+DRjfD/CVxFG49e4kfiBrLBMrHL577GiM+I+xgf1pcJiTis6FVQGrQzxDewwZp36Ogj4hZMpM6F7DnieoCCKhGniHGu7SrxXUg+wsQ28ZYQjbaFc5ghHxdWt982g0W925ijBPG+T8+we3emnQXxRSdtLnhMfNXhIfkoxLB/B9FGxBKMt4kTyTmGz9H7dcDvrkE7m3wDy+spm3D/A6G0k7fjuzbHn4Bej3kxpuMWE1wQfOow9/8ESgc8FrCAUxDpAfEXt+CZvXhJrGIR8ZllWhIVgxBUHzT0FzUujYlYRFpT0UEnOiGFkF5xiLBWwvEiJrtBrQop2EQcgjAxAP9ngHlMBo88RPUZ0S2G6/ZwLvMrd9Hej/ukOAtSs7ivn/MkQsdzXanvO/FCB+44eLoVPC8gr2KyG6cTm2vqHp9RQZQRNzr7sB2y9j7BT7Lrj+GN9YDmpO5moHSfc7zfSMKAsp3MqAdRvW9BTK0Kysv4mSv9nMd2GTI49kHBTtJRUFYpL67Q7PqR8kx0QVRhCerAIuUlhJTnhGHsYttt58clh0ilEk3CtjPlx5KVYYc0DPKuZlFBVQTDpZhUpLyCpNajwagXPNw/Y1GC8drOg30eWVM89inRlNuVDdZQg3KDEZjGHrCENtW4Au8RlimfsiirrAtlAycso97VbjuPXAALu6lsYFfYHMAuZp4zhAl0kontJnfuG8HLsCJo0efOl1H3iSHUjmF13AuxbKBh8cyhX3Hcs+zx3awWtpv2LObI/HzWjd1iIYAF3VTYvCaph/Bgu7wN+Ck2qL/RUfEljwQvpivwYEykW9zWuxTACnTj75JYYAb8xGoLZriKxdpK+2VEIwMGmX3ieRCQ3diBhv7BF639j8MNH7bNEU4XpB+HNaSudtOTGKFiWjCfRCKEhyJshxSLLkyeHUQPNYr0FOFsYhaacdxptPqrzRF4GuYnemFKJ6NxP5Nw9RNgP5DGFp4ZxofRuP9f+APSGRnE+v400AAAASN0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bWZlbmNlZCBzZXBhcmF0b3JzPSJ8Ij48bXJvdz48bXN1Yj48bWk+QzwvbWk+PG1uPjA8L21uPjwvbXN1Yj48bW8+PTwvbW8+PG1uPjM8L21uPjxtbz4mI3hENzs8L21vPjxtc3VwPjxtbj4xMDwvbW4+PG1uPjg8L21uPjwvbXN1cD48bXN1cD48bXJvdz48bWk+bTwvbWk+PG1pPlM8L21pPjwvbXJvdz48bXJvdz48bW8+LTwvbW8+PG1uPjE8L21uPjwvbXJvdz48L21zdXA+PC9tcm93PjwvbWZlbmNlZD48L21hdGg+RPS26QAAAABJRU5ErkJggg==)
physics-General
physics-
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
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