Calculus

posted by .

By Kirchoffs voltage law the sum of the voltage in the circuit. Consider the circuit with variable resistor R.
5V 10ohms

R
A. find a relationship between I and R in the circuit using E=I R and kirchoffs voltage law.
B. the power to a resistor is given by I^2R watts write P as a function of R.
C. Find the setting of the variable resistor R so that it takes max power

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    Derive the expressions for the equivalent resistence of two resistors R1 and R2 for the cases when they are (a) in series and (b) in parallel. Hint: Set up the circuit with a constant Voltage source V (it is not necessary to put in …
  2. physics

    which one of the following statements concerning an ac circuit is true?
  3. physics.

    resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
  4. physics

    resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
  5. physics

    resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
  6. physics - need help

    Resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. The circuit voltage is 180 volts. Find: the voltage of the parallel circuit the voltage across the parallel circuit the current through …
  7. physics

    Please check my work here: Resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. The circuit voltage is 180 volts. Find: a)the voltage of the parallel circuit b)the voltage across the …
  8. Physics circuit help please!

    Hi all. I posted earlier but I'm still stuck on part of this problem. I thought that statements 2 and 3 were correct below. But I got the problem wrong. Any help would be great! Can the voltage across any of the three components in …
  9. physics

    An RLC circuit has voltage supplied to it at a frequency of 13.0 kHz with a phase difference between the current and the voltage of magnitude 0.20 rad. If the circuit has a capacitance of 5.0 µF and an inductance of 0.050 H, find …
  10. Circuit and electronics

    Here we analyze the time response of the circuit in Figure 3 which contains capacitive and resistive elements and a voltage source, VS. The voltage source is switched between two nodes in the circuit, and we observe the voltage response …

More Similar Questions