4. What is the force (magnitude and direction) on wire 2 in the figure? Note: each wire is 1.56 m long, I₁ = 210 mA, I₂ = 142 mA, I, = 230 mA, I4 = 280 mA, a = 18 cm, and b = 23 cm.
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- A. Zero b. Direct downward c. Directed upward d. Directed toward the left wire e. Direct toward the right wirelist the right answers from highest to lowestA series DC motor has a resistance of 7 Q between its terminals. The motor runs at 1,259 rpm at 230 V taking a current of 12 A. What will be the speed at which the motor runs when it is connected in series with a 4 Q resistance, if there is no change in the supply voltage and current. Give your answer to two decimal places. ****** S Next > apba < Previous 1391
- 2. An ideal battery (no resistance) for which V =9 Volts is placed in series with a 100 2 resistor and a 20 mF capacitor in a closed loop circuit, as shown in the figure below. What is the RC time constant? The switch is closed at time t= 0. What will be the current in the-circuit just after the switch is closed? What is the current in the circuit a long time after the switch is closed? Use DESMOS to make a graph of the current in amperes versus the time in seconds, from t= 0 to t = 5RC.R1 is the resistance of the primary winding of a transformer. The turns ratio in terms of primary to secondary is a. What is the equivalent resistance of the primary referred to from the secondary?