KCET 2025 | Current Electricity Question 1 | Physics

Two cells of emfs $E_1$ and $E_2$ and internal resistances $r_1$ and $r_2\left(E_2>E_1\right.$ and $\left.r_2>r_1\right)$ respectively, are connected in parallel as shown in figure. The equivalent emf of the combination is $\mathrm{E}_{\text {eq. }}$. Then

KCET 2025 Physics - Current Electricity Question 3 English

$\mathrm{E}_1<\mathrm{E}_{\mathrm{eq}}<\mathrm{E}_2$ and $\mathrm{E}_{\mathrm{eq}}$ is nearer $\mathrm{E}_2$

$\mathrm{E}_{\mathrm{eq}}>\mathrm{E}_2$

$\mathrm{E}_{\text {eq }}<\mathrm{E}_1$

$\mathrm{E}_1<\mathrm{E}_{\mathrm{eq}}<\mathrm{E}_2$ and $\mathrm{E}_{\mathrm{eq}}$ is nearer $\mathrm{E}_1$

KCET 2025

MCQ (Single Correct Answer)

-0

The variations of resistivity $\rho$ with absolute temperature T for three different materials $\mathrm{X}, \mathrm{Y}$ and Z are shown in the graph below. Identify the materials $\mathrm{X}, \mathrm{Y}$ and Z .

KCET 2025 Physics - Current Electricity Question 1 English

$X$ - copper, $Y$ - semiconductor, $Z$ - nichrome

$X$ - semiconductor, $Y$ - nichrome, $Z$ - copper

$X$ - nichrome, $Y$ - copper, $Z$ - semiconductor

$X$ - copper, $Y$ - nichrome, $Z$ - semiconductor

KCET 2025

MCQ (Single Correct Answer)

-0

Given, a current carrying wire of non-uniform cross-section, which of the following is constant throughout the length of wire?

Drift speed

Current and drift sped

Current only

Current, electric field and drift speed

KCET Subjects