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Physics JAMB Past Questions

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1706
The wire X in the figure above is at right angles to the plane of the paper and carries a current into the paper. at which of the points labelled 1-4, will the magnetic flux density due to this current be in the same direction as that of the horizontal component of earth's magnetic field
  • A. 1
  • B. 2
  • C. 3
  • D. 4
View Answer & Discuss (22) JAMB 1988
1707

In the circuit diagram above, the ammeter reads a current of 3A when R is 5 ohms and 6A when R is 2ohms, the value of the unknown resistance X is

  • A. 1
  • B. 2
  • C. 3
  • D. 4
View Answer & Discuss (12) JAMB 1988
1708
A particle is injected perpendicularly into an electric field, it travels along a curved path as depicted in the image above,the particle is
  • A. gamma ray
  • B. electron
  • C. neutron
  • D. proton
View Answer & Discuss (10) JAMB 1988
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1709
The fig above shows a uniform circular object, center R and diameter PS. A circular section 6 and Diameter PR is cut from it. if PQRS is a straight line, where is center of gravity of the figure
  • A. Q
  • B. R
  • C. A point between P and R
  • D. A point between R and S
View Answer & Discuss (6) JAMB 1989
1710

A simple pendulum of mass m moves along an arc pf a circle radius R in a vertical plane as shown above. What is the work done by gravity in a downward swing through the angle q to 0 degree

  • A. mgR sinθ
  • B. MgR (1- cos θ)
  • C. mgR
  • D. mgR (1 - sinθ)
View Answer & Discuss (16) JAMB 1989
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