A filament lamp and a 220 ohm resistor are connected in series to a battery of E. M.F 6.0 V. The battery has no internal resistance. A high resistance voltmeter placed across the resistor measures 1.8 V (a) Calculate current drawn from the battery
(b) the P. D. across the lamp
(c) total resistance of the circuit
(d) number of electrons passing through the battery in a time of 1 minute

elementary charge is 1.6 x 10^-19 ​

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?