Physics

Physics, 16.11.2019 03:31, daltondespain2

Starting from zero, an electric current is established in a circuit made of a battery of emf e, a resistor of resistance r and an inductor of inductance l. the electric current eventually reaches its steady-state value. what would be the effect of using a resistor with a higher resistance in this circuit?

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Physics, 05.10.2019 03:20, youngchapo813p8d9u1

Three students are having a conversation. it goes like this. allison says: "this problem says, can you add a resistor to the circuit so that the current provided to the circuit by the battery increases. how is that possible? for the current to increase, the overall resistance of the circuit has to decrease. doesn't adding a resistor always increase the resistance of the circuit? " nima says: "let's try putting the resistor in series with the other resistors. look, it doesn't matter where we put it, adding it in series always increases the resistance of the circuit, and that decreases the current." natasha says: "that's absolutely right. however, what if we placed the new resistor in parallel with one of the others. look, if we do that, the resistance of that part of the circuit goes down. that has to increase the current from the battery."which of the students are absolutely correct here?

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Physics, 02.11.2019 13:31, martl4175

1. a 15.0 kω resistor is hooked up to a 45.0 v battery in a circuit with a switch. a.) draw a circuit diagram for the circuit described. label all parts and values. b.) what is the current flowing through the resistor? c.) what is the power dissipated by the resistor? 2. a 10.0 ω resistor is hooked up in series with an 8.0 ω resistor followed by a 27.0 ω resistor. the circuit is powered by a 9.0 v battery. a.) draw a labeled circuit diagram for the circuit described. b.) calculate the equivalent resistance. c.) calculate the voltage drop across each resistor in the circuit. 3. a 12.0 v battery is hooked up with three resistors (r1, r2, r3) in parallel with resistances of 2.0 ω, 5.0 ω, and 10.0 ω, respectively. a.) draw a labeled circuit diagram for the circuit described. b.) calculate the equivalent resistance. c.) calculate the current passing through each resistor in the circuit.

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Physics, 14.11.2019 22:31, EmmaKozlewski4907

Starting from zero, an electric current is established in a circuit made of a battery of emf e, a resistor of resistance r and an inductor of inductance l. the electric current eventually reaches its steady-state value. what would be the effect of using an inductor with a larger inductance in this circuit? a) the steady-state value of the current would be larger, but it would take the same amount of time to reach it. b) the steady-state value of the current would be the same, but it would take more time to reach it. c) the steady-state value of the current would be the same, but it would take the same amount of time to reach it. d) the steady-state value of the current would be larger, but it would take more time to reach it. e) the steady-state value of the current would be the same, but it would take less time to reach it. what�s the answer? i need justification as well.

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