Electric Circuits Answers

If a refractive index of wateris 4/3 and the angle of incidence is 30. Find the speed of light in water

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R=4

If P = 50 watt and R = 2 ohms, then I = _

calculate how much energy is convered from chemical to electrical energy when 2C of charge flows from a 9V battery

Ampere’s law assignment
Two long parallel wires are 10 cm apart and carry currents of 6 A and 4 A. what is the field B at 4 A carrying wire due to 6 A wire.

a plant charge q=40nc is placed in front of a circuit disc of 1m radius and at a distance of 0.01cm. the disk carries a positive charge uniformly distributed with a surface charge density of 20nc/m2. what is the force on the charge points?

What is the equivalent resistance of three resistors with values, 1.2

In transformer, alternating current is induced in which of the coil?

A Step-Up Transformer connected to a 120-V (rms) AC line is to supply 13,000V (rms) for a neon sign. To reduce shock hazard, a fuse is to be inserted in the primary circuit; the fuse is to blow when the rms current in the secondary circuit exceeds 8.50 mA.
(a)What is the ratio of secondary to primary turns of the transformer?
(b) What power must be supplied to the transformer when the rms secondary current is 8.50mA? (c) What current rating should the fuse in the primary circuit have?

in lab frame current flow due to ions ,by electrons or by both?