Electronics & Communication Engineering - Basic Electronics

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37.

Which unit of charge contains 6.25 × 1018electrons?                        
A. An ampere B. A coulomb
C. A volt D. A joule



38.

A switch is a device that:                        
A. short circuits complex circuits B. holds a fuse
C. has double poles D. opens or completes a current path



39.

The term used to designate electrical pressure is:                        
A. voltage B. current
C. resistance D. conductance




40.

Which electronics material opposes the movement of free electrons?                        
A. Conductor B. Insulator
C. Semiconductor D. Element



41.

Current is considered as the movement of:                        
A. electrons B. protons
C. charge D. nuclei



42.

A lead-acid battery is an example of a                        
A. solar cell B. fuel cell
C. primary battery D. secondary battery



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