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Which circuit is the most efficient and why?

Work out the power dissipated by the resistor in the following 2 circuits. All LEDs have a forward voltage of 2v. Which circuit is the most efficient and why?. Work out the power dissipated by the resistor R1 in the following 2 circuits. All LEDs have a forward voltage of 2v. Calculate current

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Which circuit is the most efficient and why?

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  1. Work out the power dissipated by the resistor in the following 2 circuits.All LEDs have a forward voltage of 2v Which circuit is the most efficient and why?

  2. Work out the power dissipated by the resistor R1 in the following 2 circuits. All LEDs have a forward voltage of 2v Calculate current I = V / R I = 3 / 150 I = 0.02A Calculate Power P = I x V P = 0.02 x 3 P = 0.06W or 60mW 3v 2v 2v Which circuit is the most efficient and why? 2v

  3. Work out the power dissipated by the resistor in the following 2 circuits.All LEDs have a forward voltage of 2v Calculate current I = V / R I = 7 / 120 I = 0.058A Calculate Power P = I x V P = 0.058 x 7 P = 0.406W or 406mW Power = 60mW 3v 7v 2v 2v 2v Which circuit is the most efficient and why? 2v

  4. Work out the power dissipated by the resistor in the following 2 circuits.All LEDs have a forward voltage of 2v Power = 60mW Power = 406mW 3v 7v 2v 2v 2v Which circuit is the most efficient and why? 2v The first one since less power is lost in the resistor

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