Daniel Cell Leclanche Cell Wet And Dry - Physics Jamb Past Questions and Answers

Question 1 :

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2 :

• JAMB 1984

Which of the following components is NOT contained in a dry cell? A

A. Carbon rod
B. Paste of magnesium dioxide
C. Paste of ammonium chloride
D. Zinc case
E. Copper rod

Question 3 :

• JAMB 1986

Which of the following is stored by a dry Leclanche cell?

A. Electrical power
B. Kinetic energy
C. Electric current
D. Chemical energy

Question 4 :

• JAMB 1991

The function of the system of granulated carbon mixed with manganese (IV) oxide in a Letanche cell is to

A. Increase the e.m.f. of the cell to 2.0V
B. Prevent local action in the cell
C. Prevent polarisation in the cell
D. Make the cell black and hence a good radiator

Question 5 :

• JAMB 2012

In a Daniel cell, the depolarizer, positive and negative electrodes are respectively

A. Copper sulphate, copper and zinc
B. Manganese dioxide, carbon and zinc
C. Sulphuric acid, lead oxide and lead
D. Potassium hydroxide, nickel and iron.