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In a stadium there are four stands Rajiv Gandhi stand, Sunil Gavaskar stand, Venkatesh Prasad stand and Pt. Din Dayal stand in which seats are alloted to commuters. The number of vacant  seats in Rajiv Gandhi stand, Sunil Gavaskar stand, Venkatesh Prasad stand and Pt. Din Dayal stand are 11, 8, 13 and 7 respectively. Anil is buying a ticket find the probability that he get a seat in Venkatesh Prasad stand.
A three-winding transformer is connected to an AC source with 50 V rms as shown in the following figure. Voltages induced in the secondary windings are 2 V rms and 8 V rms. The output rms voltage V0 is,
How many persons are standing there in a straight line, all of them facing the north? I. Only one person stands to the left of Z. Only three person stand between Z and A. The person who is immediate right of A stand at the extreme right end of the line. II. Only two persons stand to the left of Z. Only two person stand between Z and H. H stand to the immediate right of A. A stands exactly in the middle of the line.
vg সম্পর্কে লেখা যায়-i. Vg (rms) ∞ Mii. Vg (rms) ∞ Piii. vg (rms) ∞ Tনিচের কোনটি সঠিক?
A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current?
In a parallel RL circuit, there are 3 A rms in the resistive branch and 3 A rms in the inductive branch. The total rms current is
In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
A student reaches the bus station at speed of 8 km/hr on the cycle, boards the bus to the B point whose speed is 15 km/hr. From B to the rickshaw stand he gets a lift from the bike which travels at speed of 20 km/hr. From the rickshaw stand to the exam center he travels at speed of 12 km/hr. If the distance between home to the bus station, bus station to B, B to rickshaw stand, Rickshaw stand to exam center is equal then find student’s average speed. (Approximate values whenever felt necessary)
Let n be the number of ways in which 5 men and 6 women can stand in a queue such that all the women stand consecutively. Let m be the number of ways in which the same 11 persons can stand in a queue such that exactly 5 women stand consecutively. The value of m/n is
গ্যাস A এর RMS বেগ এর তুলনা গ্যাস B ও RMS বেগ দ্বিগুণ হলে A ও B এর আণবিক ভরের অনুপাত কত?