You want to make an electric circuit in which electric current makes a bulb glow. Which of the following is not absolutely necessary in the circuit?

(a) connecting wires
(b) switch
(c) electric cell
(d) electric bulb

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Solution

(b) switch
In an electric circuit, switch is used to put on or off a bulb. Since, we want to make an electric circuit in which electric current makes a bulb glow, switch is not required.

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You want to make an electric circuit in which electric current makes a bulb glow. Which of the following is not absolutely necessary in the circuit? (a) connecting wires (b) switch (c) electric cell (d) electric bulb

(b) switchIn an electric circuit, switch is used to put on or off a bulb. Since, we want to make an electric circuit in which electric current makes a bulb glow, switch is not required.

You want to make an electric circuit in which electric current makes a bulb glow. Which of the following is not absolutely necessary in the circuit?

(a) connecting wires
(b) switch
(c) electric cell
(d) electric bulb

(b) switch
In an electric circuit, switch is used to put on or off a bulb. Since, we want to make an electric circuit in which electric current makes a bulb glow, switch is not required.