Home
Class 12
PHYSICS
In R=pl/A,p is known as...

In `R=pl/A,p` is known as

A

resistance

B

resistivity

C

density

D

volume

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the equation \( R = \frac{\rho L}{A} \) and to identify what \( \rho \) represents, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Equation**: The equation \( R = \frac{\rho L}{A} \) relates the resistance \( R \) of a conductor to its physical dimensions and material properties. Here, \( L \) is the length of the conductor, \( A \) is the cross-sectional area, and \( \rho \) is a material-specific constant. 2. **Identify the Variables**: - \( R \): Resistance of the conductor. - \( L \): Length of the conductor. - \( A \): Cross-sectional area of the conductor. - \( \rho \): A constant that characterizes the material of the conductor. 3. **Determine the Meaning of \( \rho \)**: In the context of this equation, \( \rho \) is known as resistivity. It quantifies how strongly a given material opposes the flow of electric current. 4. **Conclusion**: Since the question asks what \( \rho \) is known as in the equation \( R = \frac{\rho L}{A} \), the answer is that \( \rho \) is known as **resistivity**. ### Final Answer: In the equation \( R = \frac{\rho L}{A} \), \( \rho \) is known as **resistivity**. ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Let p ^^ (q vv r)=(p ^^ q) vv(p ^^ r) . Then this law is known as

Respiratory pigment found in R.B.C. is known as

In p-n junction, p-side is known as........and n-side is known as..........

Consider the following reaction The product [P] is known as

A : The orbitals having equal energy are known as degenerate orbitals R : The three 2p orbitals are degenerate in the presence of external magnetic field .

The atomic numbers of four elements P,Q,R and S are 6,8,14 and 16 respectively. Out of these, the element known as metalloid is

Q is the point on the auxiliary circle corresponding to P on the ellipse; PLM is drawn parallel to CQ to meet the axes in L and M prove that PL=b and PN=a

In Figure, P is a point in the interior of a parallelogram A B C D . Show that a r( A P B)+a r( P C D)=1/2a r(^(gm)A B C D) a R(A P D)+a r( P B C)=a r( A P B)+a r( P C D)

In Figure, P is a point in the interior of a parallelogram A B C Ddot Show that a r( A P B)+a r( P C D)=1/2a r\ (|""|^(gm)A B C D) a r\ ( A P D)+a r\ ( P B C)=a r\ ( A P B)+a r( P C D)