4. Answer the following questions: Image 1 shown below shows a circuit diagram, to which bulb A has been connected. It is observed that the bulb glows when the switch is closed. When bulb A is replaced by a similar bulb B, as shown in image 2, bulb B does not glow. А B + + Image 1 Image 2 b) If the direction of the cell in the circuit diagram is reversed, how will it affect the brightness of bulb A ?
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b. Bulb will not glow, (fuse burns out due to overloading)
c. The circuit breaks as fuse burns out due to short circuit.
d. Amperage =
100
200
=2 A (more than 2 A)
e. Short circuit happens when two wires in the mains in contact without the presence of a resistance in between. Over loading is connecting appliances with more power in the circuit, that it can bear.
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