Question

1. A resistor with a resistance of 408 Ohms is connected to a 13 V battery . The current flowing through the resistor is

a) 29.4 mA

b) 4.896 A

c) 12 mA

d) 34 A

2) As you add more resistors in parallel to a circuit , the total voltage .

a) remains the same

b) increases

c) decreases

3. A runner is approaching an ice cream truck that is double parked . The ice cream truck is playing music at a frequency of 80 Hz. A s the runner passes the ice cream truck , what could a possible answer for the observed frequency?

a) 100 Hz

b) 80 Hz

c) 60 Hz

4. A 1-cm tall object is placed 16 cm in front of a concave mirror . if the focal length is 12 cm the image is. .

a) real m upright and enlarged.

b) virtual , inverted and Englander.

c) real , inverted and reduced.

d) real , inverted and enlarged.  

Answer 1