In the following circuits, heat produced in the resistor or combination of resistors connected to a 12 V battery will be

What is the minimum resistance which can be made using five resistors each of 1/2 Ω?

The proper representation of series combination of cells obtaining maximum potential is

A student carries out an experiment and plots the V ‒ I graph of three samples of nichrome wire with resistances R₁, R₂ and R₃ respectively as shown in figure. Which of the following is true?

In an electrical circuit, two resistors of 1/2 $\Omega$   and 1/4 $\Omega$   respectively are connected in series to a 6V battery. The heat dissipated by the 1/4  $\Omega$   resistor in 5s will be

If the potential difference across the ends of a conductor is doubled, the current flowing through it, gets ………

Calculate the R equivalent ?

V₁, V₂ and V₃ are the PD across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5A.

If the zeroes of the quadratic polynomial x² + bx + c , c ≠ 0are equal, then

The degree of the polynomial (x + 1)(x² – x – x⁴ +1) is:

If the zeroes of the quadratic polynomial x² + (a + 1)x + b are 2 and –3, then

If one of the zeroes of the cubic polynomial x³ + ax² + bx + c is –1, then the

Product of the other two zeroes is

The zeroes of the quadratic polynomial x² + kx + k where, k ≠ 0.

If one of the zeroes of a quadratic polynomial of the form x² + ax + b is the negative of the other, then it

Which of the following is not the graph of a quadratic polynomial?

The value of p for which the polynomial x³ + 4x² –px + 8 is exactly divisible by (x – 2) is:

If sum of the squares of zeroes of the quadratic polynomial 6x² + x + k is 25/36, the value of k is:

If α and β are zeroes of x² – 4x + 1, then 1/α + 1/β – αβ is

If α, β are zeroes of x² –6x + k, what is the value of k if 3α + 2β = 20?

(A)–16

(B) 8

(C) 2

(D) –8