Post Utme Physics Past Questions and Answers

Question 1081:

Calculate the effective resistance between terminals $A$ and $B$ in the circuit section shown in Fig. $2.$

A. $3.0\mathrm{\Omega }$
B. $21.0\mathrm{\Omega }$
C. $2.\mathrm{\Omega }$
D. $4.3\mathrm{\Omega }$

Question 1082:

Calculate the equivalent capacitance between terminals $A$ and $B$ in the circuit section shown in Fig. 3

A. $1.0\mu F$
B. $4.3\mu F$
C. $6.0\mu F$
D. $9.0\mu F$

Question 1083:

A broadcasting station transmits at a frequency of 89.5 MHz. What capacitance together with an inductance of $30\mu H$ is needed to tune to this station?

A. $4.16nF$
B. $2.68KF$
C. $4.16pF$
D. $2.98\mu F$

Question 1084:

When ${}_{92}^{238}U$ decays by emitting an alpha particle, the daughter nuclide is ____________

A. ${}_{90}^{234}Th$
B. ${}_{92}^{234}U$
C. ${}_{93}^{238}NP$
D. ${}_{91}^{238}Pa$

Question 1085:

A train starting from rest accelerates at the rate of $6m/s^2$ for 20 seconds to attain a constant speed, and it further travelled for another 20 seconds and decelerates at rate of $3m/s^2$ for 20 seconds.
Calculate the total distance (in kilometre) traveled by the train.

A. $4.0km$
B. $4.4km$
C. $4.8km$
D. $3.6km$