Waec 2021 Physics Question 2

Practice practical question 2 from the 2021 Waec Physics examination. This question covers General .

Waec 2021 Physics Practical

Topic: General

Question 2 WAEC • 2021 • PHYSICS • practical

You are provided with an accumulator, an ammeter, a 2 Ω resistor, a key, K, a resistance wire BP, a crocodile clip, J and other necessary materials.

( i )

Connect the circuit as shown in the diagram above.

( ii )

Use the crocodile clip to hold the resistance wire at D such that BD=d=80 cm.

( iii )

Close the key, read and record the ammeter reading. Evaluate I^{-1}.

( iv )

Repeat the procedure for four other values of d=70 cm, 50 cm, 40 cm, and 30 cm. In each case, record and evaluate I^{-1}.

( v )

Tabulate the results.

( vi )

Plot a graph with d on the vertical axis and I^{-1} on the horizontal axis.

( vii )

Determine the slope s of the graph.

( viii )

State two precautions taken to ensure accurate results.

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This is Waec 2021 Physics Question 2. It is one of the practical questions from the 2021 Waec Physics examination.

The question covers General .

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