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In the circuit shown below, a potentiometer is used to vary the current to the lamp.
If the only resistance is due to the lamp, what is the current in the circuit?
A 1.25-kg box is being pulled across a level surface where μk is 0.80. If the string is suddenly cut, causing the applied force to immediately go to 0.0 N, what is the rate of
Mechanical energy E of particle, system or object is explained as the sum of kinetic energy K and potential energy U, i.e. E = K + U. It is a scalar quantity having dimensions [ML
For a negative point charge, the electric field vectors: a) Circle the charge b) Point radially in toward the charge c) Point radially away from the charge d) C
Two parallel rectangular plates measuring 20 cm by 40 cm carry an electric charge of 0.2µC. Measure the electric flux density. If the plates are spaced 5mm apart and the vo
why one side of glass has been coated with silver..?
contact ball whit wall box
The dielectric strength of transformer oil should be (A) 100 V. (B) 5 KV. (C) 30 KV. (D) 132 KV. Ans: The dielectric strength of transformer oil mu
mass=volume * density.By using this formula we can find the mass of sphere. Volume of sphere=(4/3)pi*r^3 V=(4/3)*3.14*(1*10^-2)^3=4.187*10^-6 Mass=(4.187*10^-6)*900=3768*10^-6kg
A base of rectangular vessel measures 10cm x 8cm.
An alternating voltage given by v=100sin240t volts is applied across a coil of resistance 32 and inductance 100mH. Verify (a) the circuit impedance, (b) the current flowing,
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