Question

1. What is the definition of electric current?

2. Explain how, given a battery, a light bulb, and two wires, you can cause the bulb to light. Draw a diagram.

3. What is the difference between a series circuit and a parallel circuit?

4. If you have a string of Christmas lights or non-denominational festive lights, how can you tell whether they're wired in series or parallel?

5. It takes only 0.1 Amps of current across your heart to kill a human being. Name two ways, one involving voltage and one involving resistance, that you can be extra safe when working with circuits to decrease your chances of electrocution.

Answer 1

1.

rate of flow of eelctric charge is called current

Current I = dq/dt  

where dq is charge and dt is time

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2. by making end to end connection called as series combination of battery, bulb and wires can make light to glow.

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3.

if the terminals of the components are connected end to end in form of (1-2) order then it is called series combination

if all the end terminals of various components are connected to one side of the battery and other end terminals to other side of the battery. this is called parallel combination

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4. in case of Parallel combination of lights, if one light fused the rest continues to glow where as

in series combination if one light gets fused, the rest also fuse

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5. High resistances means low currents and low resistance means high current s

so we shud deal with low volatges to decrease the chances of eelctrocution