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1. ### Could you explain how this current measurement circuit works?

...the transistor emitter current is I*Rs/100 (100 ohm resistor at top LHS of diagram.) For large current gains in the transistor, the collector current...

1 Answers · Science & Mathematics · 16/06/2015

2. ### Capacitor Problem. looking for the potential difference between capacitor plates and dielectric constand of the slab between them.?

...x'ing b.s. by 2 / 300x10^-9 ] ⇒ √ 123.3 = V ... evaluating LHS and taking square roots of b.s. ] ⇒ V ≅ 11 V (b...

1 Answers · Science & Mathematics · 28/09/2014

3. ### show that the vector-valued function r(t) = e^-t costi + e^-t sintj + e^-tk lies on the cone z^2 = x^2 + y^2?

r(t) = e^-t costi + e^-t sintj + e^-tk This shows that point (x, y, z) is parametrically (e^-t cost, e^-t sint, e^-t) LHS= z^2= e^2t RHS= x^2 + y^2= e^2t( cos^2t + sin^2t )= e^2t So vector lies on cone

1 Answers · Science & Mathematics · 25/09/2014

4. ### How to calculate f (t) = cos at, t >= 0 by the definition of Laplace?

...st) ] dt ADD the integral from the RHS to the original integral on the LHS, obtaining: [1 + (a^2/s^2)] * F(s) = 1/s + [(a/s^2)*(sin at)*e^(-st...

3 Answers · Science & Mathematics · 11/08/2014

5. ### changing an equation to its subject of the formula?

1. Simplify the given equation. 2. Move all the unknowns(usually the subject) on your LHS and the rest of the known values on the RHS 3. Equate them to get the answer.

1 Answers · Science & Mathematics · 18/03/2014

6. ### Solve the differential equation ydx-4(x+y^6)dy=0?

...u(x) to get u(x)y' + P(x)u(x)y = u(x)g(x) Notice that the LHS becomes an exact differential, d(u(x)y). Given: y dx - 4(x + y^6...

1 Answers · Science & Mathematics · 19/02/2014

7. ### In this problem we consider a differential equation in the form M dx+ N dy = 0.?

(5 - 2x) dy - 2y dx = 0 M_y = -2, N_x = -2. The LHS is the exact differential of f(x,y) = 5y - 2xy, so the general solution is...

1 Answers · Science & Mathematics · 14/02/2014

8. ### In this problem we consider a differential equation in the form Mdx+ Ndy = 0.?

...sec(3x)*tan(3x) Since M_y is not equal to N_x, the LHS of the equation is not an exact differential, and some other method of solution woulld...

1 Answers · Science & Mathematics · 14/02/2014

9. ### Linear, causal, time invariant...?

...x(t-to)) which is equal to y(t-to)(replace t by to in the RHS and LHS of the equation y(t-to) = = sin(x(t-to))). It is obvious from the relation...

1 Answers · Science & Mathematics · 29/01/2014

10. ### calculate deflection of a supported beam. Engineering calculation?

... / (EI) ==> M = y'' EI Looking at the LHS of the Beam P/2 ======= P ======= P/2 | ------ x...

1 Answers · Science & Mathematics · 16/01/2014