Can someone help me with this please i) In the three circuits shown, the batteri

Question

Can someone help me with this please i) In the three circuits shown, the batteries and the bulbs are identical. For each of the following questions, show your work and clearly explain your reasoning a) Rank each of the currents I1,I2,I3,I4,I5. Explain. b) For circuit 2, rank the voltage across the battery V and across the two bulbs VB and VC. Explain. c) For circuit 2, write an expression for the voltage across the battery, in terms of the voltage across the bulbs VB and VC. Explain d) For circuit 3, rank the voltages across the battery ,bulb D (VD), bulb E (VE), bulb F (VF), and across the two bulbs E and F together in series, (VE&F;)). Explain.

Explanation / Answer

a)

Here ,

as Ohm's law ,

Current is I = V/R

Here ,

if all the bulbs have identical resistance

I3 > I1 = I4 > I2 = I5

b)

Here, as both the bulbs are identical

Vc = Vb

c)

Here ,

Vbat = Vb + Vc

d)

Here ,

Ve = Vf = Vbat/2

and Vd = Vbat

Therefore ,

Vd > Ve = Vf

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