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Standard VII

Physics

Electric Current and Electric Cell

A 5 V battery...

Question

A $5 V$ battery is connected across the points $X$ and $Y$ . Assume $D_{1}$ and $D_{2}$ to be normal silicon diodes. Find the current supplied by the battery if the positive terminal of the battery is connected to point $X$ .

\sim 0.86 A

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\sim 0.50 A

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\sim 0.43 A

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\sim 1.50 A

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Solution

The correct option is C $\sim 0.43 A$
Voltage drop across normal silicon diode is $0.7 V$ .

If the positive terminal of the battery is connected to $X$ then only diode $D_{1}$ will conduct current.So, current supplied by the battery,
$i = \frac{5 - 0.7}{10} = 0.43 A$

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A 5 V battery is connected across the points X and Y. Assume D1 and D2 to be normal silicon diodes. Find the current supplied by the battery if the positive terminal of the battery is connected to point X.

The correct option is C ∼0.43 AVoltage drop across normal silicon diode is 0.7 V. If the positive terminal of the battery is connected to X then only diode D1 will conduct current.So, current supplied by the battery, i=5−0.710=0.43 A

A $5 V$ battery is connected across the points $X$ and $Y$ . Assume $D_{1}$ and $D_{2}$ to be normal silicon diodes. Find the current supplied by the battery if the positive terminal of the battery is connected to point $X$ .

The correct option is C $\sim 0.43 A$
Voltage drop across normal silicon diode is $0.7 V$ .

If the positive terminal of the battery is connected to $X$ then only diode $D_{1}$ will conduct current.So, current supplied by the battery,
$i = \frac{5 - 0.7}{10} = 0.43 A$