The position of a particle as a function of time t, is given by x(t) = at + bt²- ct³ where a, b and e are constants. When the particle attains zero acceleration, then its velocity will be

Question:

Options :

(a) a + (b²)/(3c)
(b) a + (b²)/(4c)
(c) a + (b²)/c
(d) a + (b²)/(2c)

Answer :

(a) a + (b²)/(3c)

Answer Steps :

Step 1:

Step 2:

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

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