Questions

Find the resistance (in mega Ω) of a wire of length 10 m, cross sectional area 1 cm2 and made of a material of resistivity 100 Ωm.

In each of the following questions, a question is followed by information given in three statements. You have to decide the information given in which of the statements
is necessary and sufficient to answer the questions:

A, B, C, D and E are sitting in a circle. Are all of them facing the centre?

I. A is sitting second to the right of D; C is facing the centre and is not an immediate neighbour of D.
II. B, who is sitting between C and D, is second to the right of E, who is not an immediate neighbour of C. B and A are facing each other.
III. D is sitting on the immediate left of B, who is not sitting on the immediate left of A. E is on the immediate right of D.

Which of the following was described as the First Indian War of Independence?

Which of the following sportspersons recently wrote the autobiographical book 'Ace Against Odds'?

In the following figure, rectangle represents brand managers, circle represents cartoonist, triangle represents sculptors and square represents fathers. Which set of letters represents fathers who are either brand managers or cartoonists?

What charge is present on a neutron?

When electricity is passed through an aqueous solution of Sodium Chloride (brine), it decomposes to form.

7 workers work in a printing press. Each gets paid Rs 450 per day. The 8th worker demands Rs 500 per day. If this worker is hired then all other workers must be paid Rs 500. The marginal resource (labour) cost of the 8th worker is _______.