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In the circuit of figure. Treat the diod...

In the circuit of figure. Treat the diodes as ideal. Current in the `4` ohm resistor is

A

`2 A`

B

`3 A`

C

`12//7 A`

D

`30//13 A`

Text Solution

Verified by Experts

The correct Answer is:
A
With battery polarity, `D_(2)` is off. So, `I=12/(4+2)=2A`.
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Knowledge Check

  • A diode is a device that allows current to be carried in only one direction (the direction indicated by the arrowhead in its circuit symbol). Find (approximately) in terms of DeltaV and R the average power delivered to the diode circuit of the figure. Assume that the diodes are ideal and DeltaV is the rms voltage applied to the circuit.

    A
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    B
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    C
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    D
    `((DeltaV)^(2))/(R ) xx 1.4`

  • In the circuit shown in fig the heat produced in the 5 ohm resistor due to the current flowing through it is 10 calories per second. The heat generated in the 4 ohms resistor is

    A
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    B
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  • In figure , assuming the diodes to be ideal ,

    A
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    C
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