A battery of e.m.f 10V and internal resistance 2Ω is co...
A battery of e.m.f 10V and internal resistance 2Ω is connected to a resistance of 6Ω. Calculate the p.d
8.75V
7.50V
5V
2.50V
1.25V
Correct answer is B
V = E - Ir = 10V - \(\frac{10 \times 2}{8}\) = 7.5V
A rocket is fired from the earth's surface to a distant planet. By Newton's law of universal...
Which of the following statement about viscosity is not true? it ...
On a rainy day, small oil films on water show brilliant colours. This is due to ...
What is the effect of the increase in the size of the hole of a pin-hole camera on the image? it ...
What gives rise to the line spectra observed in atoms? ...
Radio telescopes are better than optical telescopes because ...