Physics WAEC Past Questions

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1401

The angle which the direction of the earth magnetic field makes with the horizontal at a palace is know as.

A. angle of contact
B. angle of dip
C. angle of declination
D. magnetic meridian

View Answer & Discuss (1) WAEC 2015

1402

What must be connected between the points P and Q to establish a steady current through the incomplete circuit diagram given?

A. Fuse
B. ammeter
C. Cell
D. voltmeter

View Answer & Discuss (3) WAEC 2015

1403

When current flows through a moving-coil galvanometer, the force exerted on the pointer depends on the: i. strength of the current. ii. magnetic field strength. iii. length of the coil. Which of the statement(s) above is/are correct?

A. i only
B. ii only
C. i and iii only
D. i, ii and iii

View Answer & Discuss (4) WAEC 2015

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1404

in a nuclear fission process, the mass defect was 1.2 x 10^-5kg. Calculate the energy released. [speed of the light in vacuum = c = 3.0 x 10⁸ms^-1]

A. 1.08 x 10¹¹J
B. 5.20 x 10¹¹J
C. 1.08 x 10¹²J
D. 2.50 x 10¹³J

View Answer & Discuss (2) WAEC 2015

1405

Which of the following statements about diode is correct?

A. reverse bias diodes have low resistance
B. forward bias diodes have high resistance
C. forward bias diodes produce high current
D. forward bias diodes function as a result of heat

View Answer & Discuss (13) WAEC 2015

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