Jamb Physics 2019 Past Questions and Answers

Question 61:

• JAMB 2019

A single force which produces the same effect as a set of forces acting together at a point is known as the

A. Component
B. Equilibrant
C. Resultant
D. Resistant

Question 62:

• JAMB 2019

Which of the following statement about the electromagnet shown above is correct?

A. When the current flows from A to B, the end A will be in north pole
B. When the current flows from A to B, the end A will be south pole
C. When the current flows from A to B, the end B will be north pole
D. None of the above

Question 63:

• JAMB 2019

Calculate the velocity ratio of a screw jack of pitch 0.2cm if the length of the tommy bar is 23cm

A. 230\(\pi\)
B. 23\(\pi\)
C. 70\(\pi\)
D. 140\(\pi\)

Question 64:

• JAMB 2019

The Earth's magnetic equator passes through Jos in Nigeria. At Jos, the

A. Angle of variation is zero
B. Magnetic declination is 90
C. Angle of dip is zero
D. Horizontal component at the Earth's field is zero

Question 65:

• JAMB 2019

The Earth's magnetic equator passes through Jos in Nigeria. At Jos, the

A. Angle of variation is zero
B. Magnetic declination is 90
C. Angle of dip is zero
D. Horizontal component at the Earth's field is zero