Two point charges q1=10nc q2= -1nc are located 2m a part find the magnitude of the force b/n them?

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?