Two long parallel wires carry equal currents in opposite directions

1. Two long parallel wires carry equal currents in opposite directions. Do the negative fields cancel?

False

2. square conducting loop with 1 meter sides is in y2 plabe. B of area increases uniformily from 3T-9T in 2s at a constant rate. What is the magnitude of emf that B induces on conductor?

3 volts (dF/dT)=(9-3)/2

3. )Horizontal bar magnet is pushed towards center of loop. Which way is current formed, if any?

No current is formed because the magnet is laying flat.

4. hen current flows through a capacitor in a circuit, electrons cross the gap from one plate to another, this is called displacement current. True or False?

False

5. lectron wave has E in -z direction and B in +y direction. What direction does the wave propagate?

+x direction

6. Which of the following will cause radiation to be emitted?

2 of the above, a and b