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- 1- The total charge entering a terminal between t = 1s and t 2s if the current passing the terminal i = (10-10e-24)A is------ and the current at t=0.5s is--.-----. %3D 2- The energy in KJ of electric device in one hour is---------. If the current entering its positive terminal is i= t²-3t A and voltage v=di/dt. 3- By using Kirchhoff's laws find all currents of branches in figure below R1 2A, 100 3A R4 R3 102 100 6A R2 Is 100arrow_forwardVoltage across an element V(s) is given below. If value of voltage at infinity is 4(volt). What is value of voltage at (t = 2sec).arrow_forwarda. The potential difference across the terminals of a battery is 8.5 V when there is a current of 3000 mA in the battery from negative to positive terminal. When the current is 2000 mA in the reverse direction, the potential difference becomes 11 V. What is the internal resistance of the battery? What is the emf of the battery?arrow_forward
- In a simple electric circuit, Ohm's law states that V = IR, where V is the voltage in volts, I is the current in amperes, and R is the resistance in ohms. Assume that, as the battery wears out, the voltage decreases at 0.04 volts per second and, as the resistor heats up, the resistance is increasing at 0.02 ohms per second. When the resistance is 300 ohms and the current is 0.01 amperes, at what rate is the current changing? amperes per secondarrow_forwardGiven that the potential difference VAB between points A and B is 20 volts and that the potential at point B is 5 volts, determine the potential at point Aarrow_forwardA certain electrical element draws the current i(t)= 10cos4t A at a voltage v(t)= 120cos4t V. Find the energy absorbed by the element in 2 s.arrow_forward
- 1)Did you find the current i2 (t)? 2)Did you find the complex power over inductance?arrow_forwardterminal is given by: q The total charge = 5tsin(4nt) mC. Calculate the current at t = 0.5s. entering aarrow_forwardFor the following network: a) Write the expression for the current i and the voltage v̟ after the switch is closed at the instant t = 0. b) Determine the expression for the current i̟ and the voltage vi after the switch is opened at the instant t= 2t. c) Sketch the waveforms of in and vi for the time periods defined by parts a) and b). 10 ko L 33 k2. 30 V 8.5 k2 4 mHarrow_forward
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