Two resistors, R1 = 10-ohm and R2 = 20-ohm, are connected in series to each other, and this series combination is connected across a 30-V source of emf. The current through the resistor R2 is:
Two resistors, R1 = 10-ohm and R2 = 20-ohm, are connected in series to each other,...
1. An unknown resistor (R3) is connected in series with the two other resistors (R1= 20 ohm and R2= 25 ohm) across a 15 V battery in the order R1arrowR2arrowR3. An ammeter, which is placed in between the battery and R1, reads a current of 200 mA. a. what is the total resistance of the the circuit? b. what is the resistance of the inknown resistor, R3? c. what is the total current? d. what is the current through each...
Two identical resistors, R1 and R2, are connected in parallel, and this parallel combination is then connected in series with a 100 Ω resistor, R3 as shown below If the total resistance of the circuit is 300 Ω what must be the resistance of R1 and R2? If the circuit is connected to a 30V battery, what would the current through R1? What voltage is a dropped across R3? 100 S
to resistors two resistors R1 equals 20 ohms and R2 equals 20 ohms are connected in series with an EMF of 3.0 volts what is the equivalent resistor in the circuit
A circuit consists of a power supply and two resistors R1 and R2 connected in parallel. An ammeter is placed to measure the current through resistor R1. The ammeter reads I1 = 8.9 mA, and the values of the resistors are R1 = 7.7 kOhm and R2 = 820 Ohm. What is the value of voltage across R2?
Resistors R1 = 1.2 kΩ and R2 = 6.8 kΩ are connected in series with a 1.5 V cell in a single circuit loop. Find (a) the current through R1, (b) the voltage across R1, (c) the wattage of the resistor that dissipates the most energy. Answers: (a. 0.19 mA, b. 0.23 V, c. 0.24 mW (R2))
A 120.0 ohm resistor is connected in parallel to a 60.0 ohm resistor. These two resistors in parallel are then connected in series with a 20.0 ohm resistor. The total combination is connected across a 15.0 V battery. a. Find the total current in the circuit. b. Find the power dissipated in the 120.0 ohm resistor.
. In circuit A, two resistors R1 and R2 are connected in series. In circuit B, two identical resistors are connected in parallel. Both circuits are powered by identical energy sources and include no other resistors. In which circuit, if any, is the current greater across R1?
Consider a circuit with two 10 ohm resistors in series and connected to a 6 V battery. A certain current flows through it. What would happen to that current if you added a third 10 ohm resistor in series with the other two? Would the current increase, decrease, stay the same, or become zero after you added the third resistor? Give a short justification of your answer.
A 24.0 volt battery is connected to three resistors to make a complete circuit. Resistor R1 = 15 ohm is in series with two other resistors that are in parallel with each other, R2 = 25.0 ohm and R3 = 15.0 ohm. What is the current that flows through the resister R1? Please explain how the answer is 0.98462 A.
Two resistors have resistances R1 and R2. When the resistors are connected in series to a 11.1-V battery, the current from the battery is 1.96 A. When the resistors are connected in parallel to the battery, the total current from the battery is 9.16 A. DetermineR1 and R2. (Enter your answers from smallest to largest.) R1 = ? R2 = ?