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Q21
(b) In an electric circuit two resistors of 12 Ω each are joined in parallel to a 6 V battery. Find the current drawn from the battery.

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Q22
An electric lamp of resistance 20 Ω and a conductor of resistance 4 Ω are connected to a 6 V battery as shown in the circuit. Calculate:
(a) the total resistance of the circuit,
(b) the current through the circuit,
(c) the potential difference across the (i) electric lamp and (ii) conductor, and
(d) power of the lamp.

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Q23
(a) Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.

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Q24
(b) How will the strength of the magnetic field change when the point where the magnetic field is to be determined is moved away from the straight wire carrying constant current? Justify your answer.

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Q25
An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm.
(ii) List four characteristics of the image (nature, position, size erect/inverted) formed by lens in this case.

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Q26
An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm.
(iii) Draw ray diagram to justify your answer of part (ii).

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Q27
Define pollination. Explain the different types of pollination. List two agents of pollination? How does suitable pollination lead to fertilization?

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Q28
<p>(a) Identify the given diagram. Name the part 1 to 5.<img alt="" src="https://imagedelivery.net/HpP6TwyM91IVKvXTR1TJrw/a5bafd54-2131-4c84-053f-9961665fb200/public" /></p>

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Q29
(b) What is contraception? List three advantages of adopting contraceptive measures.

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Q30
Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses. Write chemical equation and name of the product formed when this compound reacts with -
(i) sodium metal
(ii) hot concentrated sulphuric acid

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2019

Q21
(b) In an electric circuit two resistors of 12 Ω each are joined in parallel to a 6 V battery. Find the current drawn from the battery.

Solution

Solution

Q23
(a) Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.

Solution

Q24
(b) How will the strength of the magnetic field change when the point where the magnetic field is to be determined is moved away from the straight wire carrying constant current? Justify your answer.

Solution

Q25
An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm.
(ii) List four characteristics of the image (nature, position, size erect/inverted) formed by lens in this case.

Solution

Q26
An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm.
(iii) Draw ray diagram to justify your answer of part (ii).

Solution

Q27
Define pollination. Explain the different types of pollination. List two agents of pollination? How does suitable pollination lead to fertilization?

Solution

Q28
<p>(a) Identify the given diagram. Name the part 1 to 5.<img alt="" src="https://imagedelivery.net/HpP6TwyM91IVKvXTR1TJrw/a5bafd54-2131-4c84-053f-9961665fb200/public" /></p>

Solution

Q29
(b) What is contraception? List three advantages of adopting contraceptive measures.

Solution

Q30
Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses. Write chemical equation and name of the product formed when this compound reacts with -
(i) sodium metal
(ii) hot concentrated sulphuric acid

Solution

Subjects

2019

Q21 (b) In an electric circuit two resistors of 12 Ω each are joined in parallel to a 6 V battery. Find the current drawn from the battery.

Solution

Solution

Q23 (a) Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.

Solution

Q24 (b) How will the strength of the magnetic field change when the point where the magnetic field is to be determined is moved away from the straight wire carrying constant current? Justify your answer.

Solution

Q25 An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm. (ii) List four characteristics of the image (nature, position, size erect/inverted) formed by lens in this case.

Solution

Q26 An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm. (iii) Draw ray diagram to justify your answer of part (ii).

Solution

Q27 Define pollination. Explain the different types of pollination. List two agents of pollination? How does suitable pollination lead to fertilization?

Solution

Q28

Solution

Q29 (b) What is contraception? List three advantages of adopting contraceptive measures.

Solution

Q30 Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses. Write chemical equation and name of the product formed when this compound reacts with - (i) sodium metal (ii) hot concentrated sulphuric acid

Solution

Subjects

Q21
(b) In an electric circuit two resistors of 12 Ω each are joined in parallel to a 6 V battery. Find the current drawn from the battery.

Q23
(a) Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.

Q24
(b) How will the strength of the magnetic field change when the point where the magnetic field is to be determined is moved away from the straight wire carrying constant current? Justify your answer.

Q25
An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm.
(ii) List four characteristics of the image (nature, position, size erect/inverted) formed by lens in this case.

Q26
An object is placed at a distance of 60 cm from a concave lens of focal length 30 cm.
(iii) Draw ray diagram to justify your answer of part (ii).

Q27
Define pollination. Explain the different types of pollination. List two agents of pollination? How does suitable pollination lead to fertilization?

Q28
<p>(a) Identify the given diagram. Name the part 1 to 5.<img alt="" src="https://imagedelivery.net/HpP6TwyM91IVKvXTR1TJrw/a5bafd54-2131-4c84-053f-9961665fb200/public" /></p>

Q29
(b) What is contraception? List three advantages of adopting contraceptive measures.

Q30
Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses. Write chemical equation and name of the product formed when this compound reacts with -
(i) sodium metal
(ii) hot concentrated sulphuric acid