Find the charge q(t) flowing through an device if the current is:
(c) i(t)= 20 cos(10t + π/6)10^-6A, q(0)=2(10^-6)C

My problem in this question is the substitution.
I know that u=10t+π\6 , and u'=10, but the u' doesn't equal to the 20 in front of the cos, how do I find the derivative that will equal the "20".

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Electrical Engineering

Related Electrical Engineering Q&A

Find answers to questions asked by students like you.

Q: e foll a Onny uruut hind 34%

A: Part (a): Refer to Figure as shown in the part (a) of the given question.According to the Maximum po...

Q: In the following circuit calculate 1, and Vo. Name the method you are using. 21

A: Applying KVL in Loop 1 we get:

Q: In the following circuit, use either differential equation approach or the step by step method to fi...

A: Figure 1 shows the modified circuit when t < 0.

Q: 12- Find i(t) and v(t) in the following circuit. You may employ any method you wish. 24"φ

A: When t < 0, the inductor acts as a short circuit.So, at time t=0, we will get :

Q: 3.31 Find the node voltages for the circuit in Fig. 3.80. C, ML 1S2 4lo 2v V1 V2 11o 4 92 4Ω 1S2 ÷) ...

A: Nodal analysis primarily depends on the application of Kirchoff\'s Current Law (KCL) to various esse...

Q: For the circuit below, use superposition to find i. Calculate the power delivered to the 3-Ω resisto...

A: According to superposition theorem, the total current across any element due to all the sources is e...

Q: please help me with the question 8M

A: We can start with the truth table for input. The ASCII code corresponding to each letter from A to J...

Q: Resistor Color CodeWhat Color Code would a 30Ω ±5% look like?

A: Use color code table to obtain the desired result of your problem: -Let us consider a resistor have ...

Q: Finel)inefollo Can ollomh -0 et 2v2 ols) Lo

A: When t < 0, the switch is open and there is no independent source connected to the circuit.So, at...