An alternating current circuit has resistance r, inductance l and capacitance c in series with a voltage source. which statement is correct?
question options:
1) the voltage across the capacitor leads the voltage across the inductor by 90°.
2) the voltage across the inductor leads the voltage across the capacitor by 90°.
3) the voltage across the inductor leads the voltage across the resistor by 180°.
4) the voltage across the inductor leads the voltage across the capacitor by 180°.
5) both voltages lead the voltage across the resistor by 90°.

Aseries circuit consists of a resistor with r = 20 ? , a capacitor with c = 0.01 f, and a decaying battery with e = 300e? 5t. if the initial charge is 0, find the charge as a function of time t

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.