Metal spheres 1 and 2 are connected by a metal wire. What quantities do spheres 1 and 2 have in common? A. Same potential
B. Same electric field
C. Same charge
D. Both A and B
E. Both A andC 2

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit