(Solved): PHYSICS ASAP   pt) 1. For the circuit in Fig. a, the voltage between \( a \) and \( b \ ...

PHYSICS ASAP

 

pt) 1. For the circuit in Fig. a, the voltage between \( a \) and \( b \) is \( V_{a b}=9.0 \mathrm{~V} \). (a) (2 pt) What is its equivalent resistance? (a) (b) (2 pt) What is the current through the \( 6.0-\Omega \) resistor? (b) (c) (2 pt) What is current through the 8.0- \( \Omega \) resistor? 2. In the circuit on the diagram in Fig. 1, we know the value of the three resistors and the current through two of them. The current in the bottom resistor is unknown. The emf of the two batteries is also unknown and are marked as \( \mathrm{X} \) and \( \mathrm{Y} \). Figure 1: Problem 2 (a) (2 pt) What is the amount of current through the 1-k \( \Omega \) resistor and in which direction does it flow? (a) (b) (2 pt) Find the emf of the battery Z. (b) 2 pt) 3. What is the direction of the magnetic force on the charges in Fig. 2? 2 pt) 4. What is the direction of the magnetic force on the charges in Fig. 3 ? Figure 3: Problem 4