Physics WAEC Past Questions

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1111

A battery of e.m.f. 12.0V and internal resistance0.5\(\Omega\) is connected to 1.5\(\Omega\) and 4.0\(\Omega\) series resistor. Calculate the terminal voltage of the battery.

A. 13.0V
B. 11.0V
C. 3.0V
D. 1.0V

View Answer & Discuss (1) WAEC 2009

1112

If the direction of the curent in a straight wire is reversed, the magnetic field

A. remains the same
B. becomes parallel to the wire
C. ceases to exist
D. is oppositely directed

View Answer & Discuss WAEC 2009

1113

An inductor of inductance 1.0H is connected in series with a capacitor of capacitance 2.0\(\mu F\) in an a.c. circuit. to resonate

A. 112.5Hz
B. 225.0Hz
C. 323.5Hz
D. 707.1Hz

View Answer & Discuss (3) WAEC 2009

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1114

An ammeter connected to an a.c circuit records 5.5. The peak current in the circuit is

A. 7.8A
B. 7.1A
C. 3.8A
D. 3.5A

View Answer & Discuss WAEC 2009

1115

Two isotopes of uranium are designed as \(^{238}U\) and \(^{235}U\). The numbers 238 and 235 represent their

A. atomic numbers
B. nucleon numbers
C. proton numbers
D. neutron numbers

View Answer & Discuss (5) WAEC 2009

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