PHY 1122 B- FUNDAMENTALS OF PHYSICS II DGD Week8 Topics to be covered - PHY 1122 B FUNDAMENTALS OF PHYSICS II DGD Week8 Topics to be covered Current

# PHY 1122 B- FUNDAMENTALS OF PHYSICS II DGD Week8 Topics to be covered

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PHY 1122 B- FUNDAMENTALS OF PHYSICS II DGD Week8 Topics to be covered Current Resistance, power Circuits Resistors series, parallel, RC circuits 1.A potential difference of 3.00 nV is set up across a 2.00 cm length of copper wire that has a radius of 2.00 mm. How much charge drifts through a cross section in 3.00 ms? 2. In Fig.below, a battery of potential difference V= 12 V is connected to a resistive strip of resistance R= 6.0 Ω. When an electron moves through the strip from one end to the other, (a) in which direction in the figure does the electron move, (b) how much work is done on the electron by the electric field in the strip, and (c) how much energy is transferred to the thermal energy of the strip by the electron? 3. In Fig., what current does the ammeter read if E= 5.0 V (ideal battery), R1= 2.0 Ω, R2= 4.0 Ω, and R3= 6.0 Ω? (b) The ammeter and battery are now interchanged. Show that the ammeter reading is unchanged. 4. Figure shows five 5.00 Ω resistors. Find the equivalent resistance between points (a) Fand and (b) Fand G. (Hint:For each pair of points, imagine that a battery is connected across the pair.) H