Physics Past Questions and Answers

Calculate the e.m.f of the cell in the above circuit if its internal resistance is negligible

From the diagram above, if the potential difference across the resistor, capacitor and inductor are 80 v, 110 v, 40 v respectively, the effective potential difference is

A binary operation \(\otimes\) defined on the set of integers is such that m \(\otimes\) n = m + n + mn for all integers m and n. Find the inverse of -5 under this operation, if the identity element is 0

A progressive wave is represented by \( y = 10 \text{Sin} (1000\pi t - \frac{\pi x}{34}) \) . two layers of the wave separated by 153cm have a phase difference of

Two cars moving in the same direction have speeds of 100 kmh^-1 and 130 kmh^-1 what is the velocity of the faster car as measured by an observer in the slower car?