Direction of flow of DC electricity in a...

Question 1 / 27070kPX80XrZcvh1xFAYrAA3

Question 1 of 27070kPX80XrZcvh1xFAYrAA3

Direction of flow of DC electricity in a conductor can be determined by:

Question 1 of 27070

Direction of flow of DC electricity in a conductor can be determined by:

🔍 Key Concepts

• DC (Direct Current) vs AC (Alternating Current) and how current direction is defined • Use of a magnetic field around a conductor to infer current direction • Purpose of an ammeter and what its polarity markings indicate

💭 Think About

• Which hand rule (left or right) is associated with conventional current direction for a straight conductor and its magnetic field? • If you place a magnetic compass near a straight DC conductor, what does the needle actually tell you about the magnetic field and hence current direction? • What does connecting an ammeter with marked + and – terminals in series tell you about which way the current is flowing?

✅ Before You Answer

• Recall which hand rule is used for conventional current in a straight wire creating a magnetic field (thumb = current, fingers = magnetic field). • Verify whether a magnetic compass alone can distinguish current direction without using a hand rule. • Confirm that when an ammeter is connected with known polarity, the deflection or indication shows the direction of current relative to its + and – terminals.

Question 1 of 27070

Direction of flow of DC electricity in a conductor can be determined by:

A magnetic compass and the left hand rule

A magnetic compass and the right hand rule

Connecting an ammeter with marked polarities in series with the circuit

A & C

Question 1 / 27070kPX80XrZcvh1xFAYrAA3

Question 1 of 27070kPX80XrZcvh1xFAYrAA3

Direction of flow of DC electricity in a conductor can be determined by:

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Question 1 of 27070

Direction of flow of DC electricity in a conductor can be determined by: