question archive Q1) a) Two uncharged objects are rubbed together,explain the situation in terms of electrostatic phenomena
Q1) a) Two uncharged objects are rubbed together,explain the situation in terms of electrostatic phenomena
Subject:PhysicsPrice: Bought3
Q1) a) Two uncharged objects are rubbed together,explain the situation
in terms of electrostatic phenomena. 2marks b)A tungsten wire with a length of 34 cm has a resistance of magnitude 15 Ohm. i) Determine the surface area of the wire. (Given p tungsten=5.25×10^-8 Ohm.m) 2marks ii)Calculate the diameter of the wire. 3marks c)A steady current of 5 A in a coil of 300 turns causes magnetic flux of 2×10^4 Wb to pass through the loops of the coil.Compute the inductance in the coil if the current is stopped in 0.06s. 4marks d)Distinguish between magnetic force on a moving charge and on a current-carrying wire. 2marks e)An AC circuit consists of a resistor R,a capacitor of 200 micro F and an inductor of 50 mH are connected in series.The source supplies a voltage of 100V (rms) and it has a frequency of 75 Hz.The impedance of the circuit is 25 Ohm. i)Calculate the capacitive and inductive reactances. 4marks ii) Compute the root mean square current ,Irms 2marks iii)Compute the resistance,R 2marks iv)"Them main difference between alternating current (AC) and direct current (DC) is the direction of electron flow".Justify the statement 2marks CAN YOU HELP ME ANSWER THESE QUESTIONS.I NEED PRECISE and correct answer and working.thank you so much.. CORRECT
