What is the current running through the resistor

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Q. A 40 ohm resistor, a 60 ohm resistor, and a 120 ohm resistor are connected in parallel and this parallel group is connected in series with 15 ohm in series with 25 ohm. The whole system is then connected to a 120 volt power source. What is the current running through the 25 ohm resistor?

Q. A beam of light enters the fiber from air at an angle theta1 with respect to the normal. What is theta1 if the light strikes the core-cladding interface at the critical angle theta c?

Reference no: EM1347108

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