Physics Past Questions and Answers

Two bodies each carrying a charge of 2.00 x 10^-10C are 5cm apart. Calculate the magnitude of the force between the charges.[\(\frac{1}{4\pi \mathit{E}_o} = 9.00 \times 10^9 Nm^2C{-2}\)]

If the charge on an object is measured as 4.0 x 10^-18C, how many excess electrons does the object possess, given that the charge of an electron is 1.6 x 10^-18C

Which of the following is a unit of the time rate of flow of electric charges?

A wire 1.0m long and with cross-sectional area 2.0 x 10^-7 m² has a resistance of 0.1\(\Omega\). Calculate the electrical conductivity of the wire

Three capacitors each of capacitance 1.5\(\mu F\) are connected in series. The total capacitance in the circuit is