2, (A) Sketch a circuit with a 10 V battery connected across a 20 Ω resistor....
A 12.0 V battery is connected into a series circuit containing a 20.0 Ω resistor and a 2.70 H inductor. (a) In what time interval (in s) will the current reach 50.0% of its final value? s (b) In what time interval (in s) will the current reach 90.0% of its final value? s What If? After a very long time, using a switch like that shown in the figure below, the battery is removed and the inductor is connected...
A 50-Ω resistor and a 28-Ω resistor are connected in series to a 12-V battery of negligible resistance. What is the current flowing through each resistor?
A battery with an emf of 9.75 V is connected to a 67.0 Ω resistor. The current through the battery is 115 mA. What is the battery's internal resistance (in Ω)? Ω
5. If a silver wire has a resistance of 10.0 Q at 20.0 °C, what resistance does it have at 40.0 °C? ( 3.8x10)
At 20°C, the carbon resistor in an electric circuit connected to a 7.3-V battery has a resistance of 1.8 ✕ 102 Ω. What is the current in the circuit when the temperature of the carbon rises to 75°C? mA
At 20°C, the carbon resistor in an electric circuit connected to a 4.2-V battery has a resistance of 2.3 ✕ 102 Ω. What is the current in the circuit when the temperature of the carbon rises to 83°C? Answer in mA.
Three resistors, 15.0 Ω, 23.0 Ω and R are connected across a 6.00 V battery. The current in the circuit is 0.100 A. (a) What is the resistance of the unknown resistor? (b) What is the voltage across each resistor? (c) What is the power used by each resistor?
A 50-Ω resistor is connected across a battery, and a 26-mA current flows. When the 50-Ω resistor is replaced with a 23-Ω resistor, a 43-mA current flows. A) What is the battery's voltage? B) What is internal resistance? I need the correct answers to 2 significant figures.
Three resistors in a series connected to a battery A 2.90 Ω resistor, a 5.79 Ω resistor, and a 9.96 Ω resistor are connected in series with a 15.0 V battery. What is the equivalent resistance? What is the current in each resistor?
A 9.00-Ω resistor and a 3.00-Ω resistor are connected in parallel across a 9.00-V battery. Find (a) the current through, and (b) the voltage drop across, each resistor.