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# PHY301-Circuit Theory Quiz MCQs Lecture 1-22 Midterm Objective Questions

PHY301-Circuit Theory Quiz  MCQS #Objective #Questions #Midterm

1. Three resistances of values 7 ohms, 5 ohms, and 2 ohms are connected in series of a voltage source. Through which resistance least current will flow.

• 7 ohms
• 5 ohms
• 2 ohms
• same through all resistances ✔

2. What is the electron valence of an element of atomic number 5?

• 2
• 3 ✔
• 4
• 5

3. The closed path for flow of current in which no node is encountered more than once is called

• node
• loop ✔
• branch
• super node

4. Current through open circuit is:

• high
• minimum
• zero ✔
• infinite

5. When one resistance in a series string is open

• The current is maximum in the normal resistances
• The current is zero in all resistances ✔
• The voltage is zero across the open resistance
• The current increases in voltage source

6. A voltage divider is also called as

• Current divider
• Potential divider ✔
• Voltage regulator
• Current regulator

7. When placed together, a positively charged material and a negatively charged material will

• repel
• become neutral
• attract ✔
• exchange charges

8. Which one of the following components in the circuit is used to produce heat or limiting amount of current?

• capacitor
• resistor ✔
• inductor
•  loop

9. Junction of two or more than two elements in a circuit is called

•  loop
• ground
• node ✔
• joint

10. Usually, KVL OR KCL equation is not written for

• Ordinary node
• reference node ✔
• super node
• second node
11. The internal resistance of an ideal voltage source is
• Maximum
• one half of external resistance
• Zero ✔
• infinity
12. Distance or link between two nodes is called
• branch ✔
• loop
• node
• super node
13. Unit of inductance is
• mho
• ohm
• Henry ✔
14. When two resistances are connected in series
• both must have the same resistance value
• both must have a different resistance value
• the voltage across each must be the same
• there is only one path for current for both resistances ✔
15. Electron orbits are called
• shells ✔
• nuclei
• waves
• valences
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