1
JEE Main 2023 (Online) 13th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Different combination of 3 resistors of equal resistance $$\mathrm{R}$$ are shown in the figures. The increasing order for power dissipation is:

JEE Main 2023 (Online) 13th April Morning Shift Physics - Current Electricity Question 45 English

A
$$\mathrm{P}_{\mathrm{B}}<\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{D}}<\mathrm{P}_{\mathrm{A}}$$
B
$$\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{B}}<\mathrm{P}_{\mathrm{A}}<\mathrm{P}_{\mathrm{D}}$$
C
$$\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{D}}<\mathrm{P}_{\mathrm{A}}<\mathrm{P}_{\mathrm{B}}$$
D
$$\mathrm{P}_{\mathrm{A}}<\mathrm{P}_{\mathrm{B}}<\mathrm{P}_{\mathrm{C}}<\mathrm{P}_{\mathrm{D}}$$
2
JEE Main 2023 (Online) 12th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A wire of resistance $$160 ~\Omega$$ is melted and drawn in a wire of one-fourth of its length. The new resistance of the wire will be

A
$$640 ~\Omega$$
B
$$40 ~\Omega$$
C
$$16 ~\Omega$$
D
$$10 ~\Omega$$
3
JEE Main 2023 (Online) 11th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

JEE Main 2023 (Online) 11th April Evening Shift Physics - Current Electricity Question 40 English

The current flowing through R$$_2$$ is :

A
$$\frac{1}{2} \mathrm{~A}$$
B
$$\frac{1}{3} \mathrm{~A}$$
C
$$\frac{1}{4} \mathrm{~A}$$
D
$$\frac{2}{3} \mathrm{~A}$$
4
JEE Main 2023 (Online) 11th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Two identical heater filaments are connected first in parallel and then in series. At the same applied voltage, the ratio of heat produced in same time for parallel to series will be:

A
4 : 1
B
1 : 4
C
2 : 1
D
1 : 2
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