Question 4531:

• NECO 2004

Calculate the energy stored in an inductor of inductance 0.5H when a current of 3A flows through it.

A. 15.00 J
B. 9.45 J
C. 6.00 J
D. 4.50J
E. 2.25 J

Question 4532:

• NECO 2004

The relative density of dilute tetraoxosulphate (vi) acid in a battery is measured with a ____________

A. Barometer
B. Hydrometer
C. Manometer
D. Hypsometer

Question 4533:

• NECO 2004

A resistor connected in parallel with a galvanometer so that a large amount of current can be measured is called a/an ____________

A. Ammeter
B. Avometer
C. Coil resistor
D. Multiplier
E. Shunt.

Question 4534:

• NECO 2004

Which of these expresses the relationship between the earth’s magnetic field FE, and the field’ FB due to a magnet at neutral points? FE is ____________

A. Equal and opposite to F^B
B. Equal to and in the same direction with F^B
C. Greater than and in the same direction with F_B
D. Greater than and opposite to F_B
E. Less than and opposite to F_B

Question 4535:

• NECO 2004

The general equation of a wave CANNOT be written as ____________

A. Y = A Sin [2 π (\(\frac{t}{T}\) ± Xλ)]
B. Y = A Sin [wt ± kx]
C. Y = A Sin [2 \(\frac{\pi}{\lambda}\) (vt ± x)]
D. Y = A Sin [2π (ft ± \(\frac{X}{\lambda}\) )]
E. Y = A Sin 2 π f(T ± \(\frac{X}{\lambda}\))]