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Estimate the potential at 2cm from a proton and find the potential difference between two points that are 2cm and 4cm from a proton.
A resistor of 50 ohm on inductor of 20/π Hendry and a capacitor of 5 /5 micro farate are connected in a series to a voltage source of 230 volt, 50 hz find the inpedence of the circuit
Three charged particles are arranged in a line as shown in figure below. Charge A = -5 μC, charge B = +10 μC and charge C = -12 μC. Calculate the net electrostatic force on particle B due to the other two charges
. A vertical wire of 1 meter length carries a current of 1 A at 10 MHz. The total radiated power is nearly
A uniform plane wave travelling in air is incident on the plane boundary between air and another dielectric medium with εr = 4. The reflection coefficient for the normal incidence is
The electric field in free space is given by E= 50cos (102t+beta x) ay
1,find the direction of wave propogation
In a 100 turn coil, if the flux through each turn is (t3 - 2t)mWb, the magnitude of the induced emf in the coil at a time of 4 sec is
Which of the following should dominant wave have?
A.Lowest cut off frequencyB.Highest cut off frequencyC.No attenuationD.No phase shift
A plane electromagnetic wave travels in dielectric medium of relative permittivity 9. Relative to free space, the velocity of propagation in the dielectric is
Most antenna consisting of a 50 meter long vertical conductor operates over a perfectly conducting ground plane. It is base fed at a frequency of 600 kHz. The radiation resistance of the antenna in ohms is
