Question

32. Out of silver and copper which is a better conductor and why? Define one volt.​

Answer 1

Required Answer:-

(Part A)

Both Silver and copper are good conductors of electricity due to the presence of free electrons as in metals. To know which is the better conductor? We need to check their conductivities.

Conductivities of metals:

• Silver (Ag): 63 × 10⁶ siemens/meter
• Copper (Cu): 59 × 10⁶ siemens/meter

As given above, conductivity of silver is higher than copper hence, silver is the better conductor.

━━━━━━━━━━━━━━━━━━━━

(Part B)

Volt is the unit of potential difference. It is given by Work done per unit charge. Hence the definition of 1 volt should be$:$

• A potential of 1 volt means that 1 joule of work is done in moving 1 coulomb of positive charge from infinity to that point.

Note: Volt is also the unit of potential difference. Hence, You can change the definition of 1 volt accordingly from one point to another in place of infinity to the point.

Answer 2

Answer:

Answer (1)

Silver is a better conductor. Both are conductor but we conductvieity of Silver = 63 × 10⁶ and Copper = 59× 10⁶.

The conductivity of Silver is greater therefore, Silver is a better conductor than copper.

Answer (2)

Volt :- It is the SI unit of Voltage or potential Difference.

$\boxed{ \frak {V = \frac{W}{Q} } }$

V is the Potential Difference

W is the Work Done

Q is the Charge