Match the following:

A. Morphine is a sedative and pain killer, so it matches with III.
B. Heroin is a depressant and slows down body functions, so it matches with I.
C. Cannabinoids have effects on the cardiovascular system, so they match with IV.
D. Cocaine produces a sense of euphoria and increased energy, so it matches with II.
Final Answer:
A - III, B - I, C - IV, D - II
Match List-I with List-II:
\[
\begin{array}{|l|l|}
\hline
\textbf{List-I (Name of Drug)} & \textbf{List-II (Indication)} \\
\hline
A. \ \text{Baclofen} & I. \ \text{Spasticity} \\
B. \ \text{Diclofenac} & II. \ \text{Inflammatory pain} \\
C. \ \text{Gabapentin} & III. \ \text{Central or peripheral neurogenic pain} \\
D. \ \text{Amitryptiline} & IV. \ \text{Depression} \\
\hline
\end{array}
\]
Match List-I with List-II
\[
\begin{array}{|l|l|}
\hline
\textbf{LIST I} & \textbf{LIST II} \\
\hline
A. \ \text{Dopamine} & I. \ \text{Intradermal} \\
B. \ \text{Nitroglycerine} & II. \ \text{Intravenous} \\
C. \ \text{BCG vaccine} & III. \ \text{Subcutaneous} \\
D. \ \text{Insulin} & IV. \ \text{Sublingual} \\
\hline
\end{array}
\]
Match List-I with List-II
\[
\begin{array}{|l|l|}
\hline
\textbf{LIST-I (Pharmacological Terms)} & \textbf{LIST-II (Definitions)} \\
\hline
A. \ \text{Pharmacokinetics} & I. \ \text{It deals with the biological and therapeutic effect of the drugs including the mechanism of drug action} \\
B. \ \text{Pharmacogenetics} & II. \ \text{It deals with the absorption, distribution, metabolism and excretion of drugs} \\
C. \ \text{Pharmacodynamics} & III. \ \text{It is related with development of new dosage forms and new drug delivery system with a view to produce desired pharmacokinetics and pharmacodynamic characteristics of drug} \\
D. \ \text{Biopharmaceutics} & IV. \ \text{It deals with the study of variation in drug response and metabolism due to inherited abnormalities} \\
\hline
\end{array}
\]
Two concentric thin circular rings of radii 50 cm and 40 cm each, carry a current of 3.5 A in opposite directions. If the two rings are coplanar, the net magnetic field due to the two rings at their centre is: