1994 - JAMB Physics Past Questions and Answers - page 4
Which of the following has the lowest internal resistance when new?
When a biro pen rubbed on a dry silk cloth is moved very close to a piece of paper on a dry table, the pen is found to pick up the paper. This is because
A capacitor 8(\mu)F is charged to a potential difference of 100V. The energy stored by the capacitor is
Two capacitors R1 = 4(\Omega) and R2 = 5(\Omega) are connected in parallel across a potential difference. If P1 and P2 represent power dissipated in R 1 and R2 respectively, then the ratio P1 : P2 is
Which of the following are found in the receiver but not in the microphone of a telephone handset? i. Diaphragm. ii. soft iron pole pieces. iii. permanent magnet. iv.carbon blocks
If two parallel conductors carry currents flowing in the same direction, the conducts will
A certain radioisotope of (^{235}_{92}U) emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are
If light with photon energy 2eV is incident suitably on the surface of a metal with work function 3eV, then
A spring of length 25cm is extended to 30cm by a load of 150N attached to one of its end, what is the energy stored in the spring?
