Please po pasagot nito 1-9 lang naman po please yung matinong sagot po please pasagot.

Choose the correct answer.

1.What is the metal rod of an electromagnet?

A. electricity source
B. coil
C. core
D. wire


2. In a parallel circuit containing set of bulbs, if one of the bulb is removed, what happen to the electric current that will be received by the other bulbs?

A. it will increase
B. it will decrease
C. it will remain the same
D. it will stop flowing



3. What will happen to the strength of an electromagnet if the number of coils is decreased?


A. increased
B. decreased
C. unaffected
D. removed



4. Which of the following will strengthen the magnetic field of an electromagnet?

A. decreasing the number of coils
B.decreasing the electricity flow
C. using thicker iron rod or nail
D. removing the battery




5. While electricity flows through the wire coil, what surrounds the wire?

A. magnetic field
B. sound
C. light
D. electricity



6. What happens when opposite poles of two magnets meet?

A. They attract
B. They repel
C. They give off electricity
D nothing happens



7. What type of circuit consists of more than one pathway for electric current?

A. series circuit
B. short circuit
C. open circuit
D. parallel circuit




8. What kind of circuit commonly used in households?

A. series circuit
B. short circuit
C. open circuit
D. parallel circuit



9. You are required to create an electric circuit setup with more than two bulbs. What you should do to have brighter bulbs?


A. add batteries
B. add wires
C. add more bulbs
D. add switch​